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Related Manuals for Polar Air PCGH-3R-V-AECM
Summary of Contents for Polar Air PCGH-3R-V-AECM
- Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PCGH-3R-V/P-AECM CASSETTE...
- Page 2 INVESTING IN QUALITY, RELIABILITY & PERFORMANCE ISO 9001 QUALITY World Leading Design and Technology Every product is manufactured to meet Equipped with the latest air‐conditioning test rooms and manufacturing technology, we produce over the stringent requirements of the internationally recognized ISO 9001 50,000 fan coil units each year, all conforming to the standard for quality assurance in design, highest international standards of quality and safety. development and production. ETL SAFETY STANDARDS The Highest Standards of Manufacturing ...
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Page 3: Safety Symbols Used
Page 1 WARNINGS DEFINITIONS: CAUTION: Risk of minor/moderate injury if precaution not taken. WARNING: Risk of death/serious injury if warning is not heeded. DANGER: Risk of death/serious injury if danger is not avoided. SAFETY SYMBOLS USED CAUTION: Important information, read the provided instructions carefully WARNING: Potential electric shock hazard WARNING: High voltage WARNING: Cut/Crush hazard Protective earth connection ... - Page 4 Page 2 FAN COIL SAFETY GUIDE CAUTION: Care must be taken when handling sheet metal. Please read the information in this document carefully prior to Sheet metal parts have sharp edges and could cause attempting the installation, operation and/or servicing of the injury. fan coil. This document contains all information required to install and operate the Polar Global fan coil unit. Failure to follow the directions provided herein may impair the safeties ...
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Page 5: Table Of Contents
Page 3 Table of Contents Technical Data ................................. 5 General Description .............................. 5 General Specification .............................. 6 2‐Pipe Systems .............................. 6 4‐Pipe Systems .............................. 7 MCA and MOP Data .............................. 8 Sound data ................................... 9 Coil Data .................................. 11 Dimensional Drawings of 2‐Pipe Unit ........................ 12 Dimensional Drawings of 4‐Pipe Unit ........................ 13 Installation ................................ 14 Safety Precautions .............................. 14 Operating Limits ................................. 15 Before Installation .............................. 15 Installation Location ... - Page 6 Page 4 MODEL CODE NOMENCLATURE 1 2 3 4 5 PCG‐3R ‐04 ‐VX ‐AECM ‐I Description Notation PCG‐3R PCG: Hydronic Cassette G Series 1 PCH‐3R PCH: Hydronic Cassette H Series Unit Size. 04‐08 (for PCG) 04 2 12‐20 (for PCH) (See General Specification Section A for cooling and heating capacities.) P: Chilled/Hot Water, 4‐Pipe V: Chilled/Hot Water, 2‐Pipe VX 3 VEH: Chilled Water, 2‐Pipe with Electric Heater X: 208‐240V EC motor Y: 110‐120V EC motor 4 AECM EC Motor ...
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Page 7: Technical Data
Page 5 Technical Data General Description The Ceiling cassette units make each served area an independent controlled temperature zone to suit diverse requirements. STRUCTURE‐ Cases are constructed of galvanized sheet steel with integral fan mounting rails for added strength. Fire resistant insulation is fitted internally to provide both thermal and acoustic insulation. The RAL9010 fascia is constructed of high‐impact polystyrene. COILS-constructed with seamless copper tubes and headers. The tubes are mechanically expanded into corrugated aluminum fin material for a permanent primary to secondary surface bond. Coils are tested at 500 PSI and rated for maximum operating pressure of 300 PSI. Coils include manual air vent and water purge valves. Fan- The backward‐curved centrifugal fan is statically and dynamically balanced for quiet operation. Fan impellers are made from fire‐retardant plastic for lightweight and corrosion‐resistant operation. EC motor- The unit is provided with constant torque, permanent magnet brushless EC motors capable of 3‐speed or variable speed operation via PCB controls. Filtration- Reusable wire framed filters are fitted and may be vacuum cleaned. Drain pump- A condensate pump is fitted to carry water out of the unit. The pump is fixed to a mounting bracket. The pump can be withdrawn from the bottom after removing the front panel. A float switch is fitted to stop the cooling action, should the pump become blocked or fail. Louver- Louver vanes are manufactured from ABS to prevent condensation from forming, automatic adjustable and driven by stepping motors on unit. Fresh air- The fresh air system for cassette unit allows up to 15% of unit airflow (maximum air flow per connection is 60 CFM) as fresh air intake (per connection). Maximum 2 fresh air connections per unit are allowed. CONTROL SYSTEMS 1. Intelligent control (I type) Intelligent control board is controlled via Infra‐red handset and/or Intelligent wired wall pad, is field programmable and easy to be configured through the wired wall pad or open Modbus protocol with VWV and VAV control logics, provides variable speed indoor fan control, integrates with Intelligent modulating valves to allow Auto Dynamic Balancing and Intelligent Constant Delta T management systems. It controls 2‐pipe, 2‐pipe with electric heater, 2‐pipe with 6‐way valve and 4‐pipe systems. ... -
Page 8: General Specification
Page 6 General Specification 2‐Pipe Systems Product range: PCG(H)‐3R‐V‐AECM 3‐row coil 2‐pipe with EC Motor(s) PCG(H)‐3R‐[Size]‐V‐AECM PCG‐04 PCG‐08 PCH‐12 PCH‐20 Configuration 2‐pipe Number Of Fan Blowers Single Unit Configuration 110‐120/1/60 Power Supply (V/Ph/Hz) 208‐240/1/60 H 338 476 765 1200 Air Total Air Flow M CFM 224 425 618 941 L 118 118 ... -
Page 9: 4-Pipe Systems
Page 7 4‐Pipe Systems Product range: PCG(H)‐3R‐P‐AECM 2‐row cooling coil and 1‐row heating coil 4‐pipe with EC motor(s) PCG‐04 PCG‐08 PCH‐12 PCH‐20 PCG(H)‐3R‐[Size]‐P‐AECM Configuration 4‐pipe Unit Number Of Fan Blowers Single Configuration 110‐120/1/60 Power Supply (V/Ph/Hz) 208‐240/1/60 H 338 476 765 1200 Air Total Air Flow M CFM 224 425 618 941 L 118 118 ... -
Page 10: Mca And Mop Data
Page 8 MCA and MOP Data 115V With Electric Heater Without Electric Heater MODEL MCA (A) MOP (A) MCA (A) MOP (A) 5.9 0.46 PCG‐04 11.9 1.02 PCG‐08 18.1 1.78 PCH‐12 24.8 3.04 PCH‐20 26.5 4.78 PCH‐24 15 220V ... -
Page 11: Sound Data
Page 9 Sound data Model PCG-04-AECM Speed (RPM) H(570) M(450) L(250) 200 300 400 500 600 700 800 900 1000 Sound Power dB(A) 52.3 46.3 36.8 36.8 38.8 42.8 49.2 53.3 56.4 60.4 62.4 64.6 20 Hz 11.7 16.1 14.3 12.1 15.2 19.3 12.9 16.9 ... - Page 12 Page 10 Model PCH-12-AECM Speed (RPM) H(860) M(620) L(350) 200 300 400 500 600 700 800 900 1000 Sound Power dB(A) 63.3 54.8 40.8 34.6 37.2 44.2 51.5 54.5 57.7 61.6 66.6 68.9 20 Hz 11.8 15.3 10.3 11.0 10.2 11.8 16.2 13.9 ...
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Page 13: Coil Data
Page 11 Coil Data 2-Pipe Systems Tube Fin Length (inch) Fin Height Model Fins / inch No. of rows No. of circuits Diameter (inch) Inner Outer (inch) PCG‐04 7‐7/8” 47‐1/16” 51‐1/8” 9/16” 3 4 1/4” PCG‐08 9‐13/16” 47‐1/16” 51‐1/8” 9/16” 3 5 1/4” PCH‐12 7‐7/8” 60‐1/4” 64‐5/16” 9/16” 3 6 ... -
Page 14: Dimensional Drawings Of 2-Pipe Unit
Page 12 Dimensional Drawings of 2‐Pipe Unit Model A B F PCG‐04‐V‐AECM 26‐3/4” 22‐15/16” 11” 24‐11/16” 2‐7/16” 4‐7/8” 10‐1/16” PCG‐08‐V‐AECM 26‐3/4” 22‐15/16” 11” 24‐11/16” 4‐7/16” 6‐7/8” 11‐7/16” PCH‐12‐V‐AECM 32‐11/16” 28‐3/4” 13‐9/16” 30‐1/2” 3‐5/16” 5‐7/8” 10‐1/4” PCH‐20‐V‐AECM 38‐9/16” 32‐11/16” 19‐3/16” 34‐7/16” 4‐3/16” 7” ... -
Page 15: Dimensional Drawings Of 4-Pipe Unit
Page 13 Dimensional Drawings of 4‐Pipe Unit Model A B F G PCG‐04‐V‐AECM 26‐3/4” 22‐15/16” 11” 24‐11/16” 2‐7/16” 4‐7/8” 10‐1/16” 11‐1/8” PCG‐08‐P‐AECM 26‐3/4” 22‐15/16” 11” 24‐11/16” 4‐7/16” 6‐7/8” 11‐7/16” 12‐1/2” PCH‐12‐P‐AECM 32‐11/16” 28‐3/4” 13‐9/16” 30‐1/2” 3‐5/16” 5‐7/8“ 10‐1/4” 11‐5/16“ PCH‐20‐P‐AECM 38‐9/16” 32‐11/16” 19‐3/16” 34‐7/16”... -
Page 16: Installation
Page 14 Installation Safety Precautions • When installing, performing maintenance or servicing Polar Air fan coil units observe the precautions stated in this manual as well as those stated on the labels attached to the unit. • Ensure all local and national safety codes, laws, regulations, as well as general electrical and mechanical safety guidelines are followed for installation, maintenance and service. • The appliance is for indoor use only. • Ensure the correct power supply is provided. • Installing and servicing fan coil unit should be performed by qualified service personnel only. • This appliance is not intended for use by persons (including children) with reduced physical, sensory ... -
Page 17: Operating Limits
Page 15 Operating Limits Power supplies Code Volt Phase Hz X 220 1 60 Y 115 1 60 Water circuit Minimum entering water temperature 35.6 °F Maximum entering water temperature 176 °F Coil tested maximum pressure 500 psi Before Installation The installation site must be established by the system designer or other qualified professional, taking account of the technical requisites and current standards and regulations. Cassette fan coil units must be installed by qualified personnel only. Cassette fan coil units are designed for installation in a false ceiling, for intake of fresh air from outside and for diverting a small part of the treated air into a neighboring room. They must be installed in such a way as to enable treated air to circulate throughout the room and allow the minimum ... -
Page 18: Installation Location
Page 16 Installation Location Do not install the unit in rooms where flammable gas or alkaline acid substances are present. Aluminum/copper coils and/or internal plastic components can be damaged irreparably. Do not install in workshops or kitchens; drawn in oil vapors might deposit on the coils and alter their performance or damage the internal plastic parts of the unit. If installation of unit includes using a lift, insert a plywood sheet between the unit and the lift forks to avoid damaging unit. (Figure B.5.1) It is recommended to locate the unit near one side of room to ensure optimum air distribution. (Figure B.5.2) Generally, the best louver position is the one which allows air diffusion along the ceiling. Alternative positions can be selected. Confirm sufficient space is provided to allow removal of panels from the ceiling in the selected position and to allow enough clearance for maintenance and servicing operations. Figure B.5.1 Figure B.5.2 False Ceiling Clearance Verify inlet and outlet grilles are not obstructed to ensure proper air flow. Confirm location allows condensate to be properly drained. Confirm height between the bottom of upper deck and top of ceiling is sufficient for installation. (Figure B.6.1) Ensure there is sufficient space around the unit to provide installation and service. Figure B.6.1 Model B ... -
Page 19: Condensate Drainage Connection
Page 17 Condensate Drainage Connection The unit is fitted with a condensate pump with a maximum of 19‐11/16” lift. Confirm drain outlet has not been damaged before connecting drain pipe to unit. Discharge pipe may be connected with hose clamp. (Figure B.7.1) The drain must be installed with a downward slope. Insulate drain pipe after installation. Figure B.7.1 Caution Factory‐provided drain outlet is ABS. Using an unsuitable glue may damage the drainage outlet. (All dimensions are approximate within 1/16 of an inch of those indicated.) External Drain Pan Installation 1. Align the two screw holes in the fixing plate to the two holes in the external drain pan. (Figure B.8.1 and B.8.2) 2. Make sure the drain pan is horizontal. 3. Tighten the two screws while making sure the external drain pan is installed flush against the fixing plate. (Figure B.8.3) 4. When the installation is completed, it is necessary to wrap the connecting pipe with thermal insulation to prevent condensation on ceiling tiles. Figue B.8.1 Figure B.8.2 External Drain Pan ... -
Page 20: Water Connections And Valve Configurations
Page 18 Water Connections and Valve Configurations The cassette unit uses is provided with 3/4” water piping connections with gaskets. ~I: Units are compatible with: 2‐way and 3‐way on/off valves (thermoelectric or electric motor‐driven actuation), with OPEN/CLOSE state actuation. ~W: Valve control requires external wired thermostat. See thermostat manual for details. CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. Fresh Air Renewal Connection The fresh air system for cassette unit allows up to 15% of airflow (maximum air flow per connection is 100m /h) to be fresh air intake (per connection). Maximum 2 fresh air connections per unit are allowed. 1. The corners of the cassette allow separate ductwork to be installed for outside air intake (Figure B.10.1) 2. Cut and remove thermal insulating material. 3. Open the mounting plate (Figure B.10.2 and Figure B.10.3) 4. Install the flange to casing and attach with 2 screws. (Figure B.10.4 and B.10.5) Figure B.10.1 Figure B.10.2 Figure B.10.3 PG2024 NA_PCGH‐V/P‐AECM‐001 ... - Page 21 Page 19 Figure B.10.4 Figure B.10.5 Fresh Air Flange dimension (All dimensions are approximate within 1/16 of an inch of those indicated.) PG2024 NA_PCGH‐V/P‐AECM‐001 ...
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Page 22: Branch Duct Connection
Page 20 Branch Duct Connection The side opening allows branch duct work to be installed. Dimensions and location for connection are shown in Figure B.11.1 and Figure B.11.2. Flanges and conduits can be installed to casing. Conduits can be flexible polyester with spring core or corrugated aluminum externally insulated. Branch duct flange and blanking plates are available as separate accessories items. Figure B.11.1 Figure B.11.2 Installation Procedures: 1. Look for the yellow sticker on the casing for the location of branch duct connections. 2. Use a cutter and follow along the pre‐cut circular marking as shown and trim off the insulation. 3. Knock out the pre‐cut hole. 4. Connect the flange to the opening with 4 tapping screws (Ø1/8 x 1/2). Figure B.11.3 (All dimensions are approximate within 1/16 of an inch of those indicated.) CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. PG2024 NA_PCGH‐V/P‐AECM‐001 ... -
Page 23: Suspension Bolts Layout And Ceiling Opening
Page 21 Suspension Bolts Layout and Ceiling Opening Using installation template, remove and/or modify the ceiling panels and install the suspension bolts as the images below. PCG-04/08 23‐5/8 x 23‐5/8: Dimensions for opening 24‐1/2 x 11: Suspension Bolts PCH-12 29‐1/2 × 29‐1/2: Dimensions for opening 13‐9/16 × 30: Suspension Bolts PG2024 NA_PCGH‐V/P‐AECM‐001 ... - Page 24 Page 22 PCH-20 33‐7/16 × 33‐7/16: Dimensions for opening 19‐1/16 × 34: Suspension Bolts (All dimensions are approximate within 1/16 of an inch of those indicated.) PG2024 NA_PCGH‐V/P‐AECM‐001 ...
- Page 25 Page 23 Installation Procedures: 1. Lift unit (without front panel) with care by four corners only. Do not lift unit by the condensate drain discharge pipe or piping connections. 2. Incline the unit and insert it into ceiling. Insert support rods into the bracket slot. 3. Remove some T bars if necessary to achieve enough clearance. 4. Line up the unit to the supporting bars of the ceiling by tightening the nuts and counter nuts of the suspension rods 5. After connecting the condensate drain piping and piping connections, confirm fan coil is level. 6. Check to ensure the unit is level. Drain will at the lowest point when unit is level. 7. Tighten nuts on the suspended rods. For Single Fan Unit: CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. PG2024 NA_PCGH‐V/P‐AECM‐001 ...
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Page 26: Electrical Connection
Page 24 Electrical Connection It is recommended shielded line voltage and low voltage cables in electrically noisy areas. Do not install fan coil unit in a location where electromagnetic waves may be directly emitted towards infra‐red receiver on the unit. Install the unit and components as far away as is practical (at least 16.4 ft) from the electromagnetic wave source. Use shielded sensor cable in where electromagnetic waves exist. Install a noise filter if necessary. IMPORTANT NOTES Please ensure the cable of the main powers supply is longer than 16.4ft from the control box terminal block. This is to ensure the control box can be slid out easily during maintenance activities. Always take safety precautions before wiring for mains supply. See section B.1, Safety Precautions. Wiring Procedures: Open the terminal block cover by removing the 4 screws. Connect power cable to the terminal according to the wiring diagram. Connect room temperature sensor and coil temperature sensors to control box. Connect stepping motors. Connect receiver display. Connect wired wall‐pad controller (optional). Slide the control box into the unit casing and attach with screws. Figure 28 Only operate the equipment with an appropriately sized breaker in place and wire sizes with ... -
Page 27: Mounting Front Panel Assembly
Page 25 Mounting Front Panel Assembly Remove return grille from front panel. Move the front panel to the unit casing. Tighten 4 screws to attach the front panel as shown in Figure B.14.1 and Figure B.14.2. The front panel does not move upwards excessively because the screws are not fully threaded (see below Figure B.14.3). Therefore, the height of false ceiling and installation height should be measured accurately to ensure there is no gap between the false ceiling and the front panel. Install the grille back to front panel. Figure B.14.1 Figure B.14.2 Figure B.14.3 Start‐Up The unit should not be started up until the system piping has been cleaned and all the air has been purged. Check condensate drain pipe slope. Confirm the condensate drain pump in good working order. Confirm float switch is not loosen or become dislodged during shipping. Use the following steps to confirm pump functionality: 1. Install cassette unit in an absolute horizontal position. 2. Fill the internal drain pan by pouring water through the external drain pan to confirm drain pump is working. 3. Confirm flow of water through condensate drain pipe. If the water is not expelled, verify float switch is has not been damaged. 4. Verify air filter is clean and properly installed. 5. Ensure that voltage and current values correspond with the unit nameplate values; check electrical connections. 6. -
Page 28: Maintenance
Page 26 Maintenance Turn off the main power switch before performing any service or maintenance operations. Please see section B.1. “Safety Precautions”. The air filter is made of acrylic fiber and is washable in water. Open the intake grille by releasing the two fasteners to remove filter. Check the filter before the operating season and then periodically while in use; clean or replace as necessary. For Units Out Of Use for Extended Period Prior to restarting the unit: Clean or replace the air filters. Check and remove any obstruction from the external drain pan and the internal drain pan. Extra Maintenance The electrical panel is easily accessible by removing the cover panel. Inspection, servicing, and replacement of internal components such as coils, condensate pump, float switch and drain pan are accessible via cover panel. Be aware of water spillage when removing the condensate drain pan Release the drain pan fixing screws and remove the condensate drain pan with care. Filter Removal 1. Unlock the two fasteners on the front panel. 2. Open the grille downward with care. 3. -
Page 29: Air Vent And Water Purge Valve
Page 27 Air Vent and Water Purge Valve Step 1: Remove grille, access the area Step 2: Operate the air vent and water purge indicated by the red line. valve by turning the knobs. Fan Speed Customization Fan speed can be customized by changing the RPM setting from wired wall pad. Please read G.2. Wired Wall Pad Controller, Section 15: EC motor RPM setting for details. (For referring to Section C.5., Steps 1,2 and 3) Step 1: Remove grille to access the connection wires area. Step 2: Remove the 4 screws of the inner grille. Step 3: Remove inner grille and venture. CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could ... -
Page 30: Motor And Fan Blower Replacement
Page 28 Motor and Fan Blower Replacement Refer to Section C.5. for Steps 1, 2 and 3. Wire connector Mounting bolt Step 4: Use a spanner to remove the fan blower. Step 5: Remove motor by undoing the 4 bolts. Disconnect wire connector and replace the motor. Condensate Pump Kit Replacement Refer to Section C.5. for Steps 1, 2 and 3. Step 4: Remove front panel and disconnect Step 5: Unscrewing the 8 screws as shown stepping motor and IR receiver. above. Step 6: Remove the drain pan and internal drain Step 7: Remove the pump kit (including Drain pan. pump and Float switch) and replace it. PG2024 NA_PCGH‐V/P‐AECM‐001 ... -
Page 31: Control Box Replacement
Page 29 Control Box Replacement Refer to Section C.5. for Steps 1, 2 and 3. Step 5: Remove the terminal cover by undoing the 4 Step 4: Remove 2 screws from the control box and screws. Disconnect wiring on the terminal. Replace slide it out. with a new control box and reconnect the wires. Electric Heater Installation Refer to Section C.7. for Steps 1 to 6. Step 7: Snap the insulated ring of the electric heater to the Step 8: Plug in the connector of electric heater. electric heater mounting. REMARKS If the cassette is installed with an Electric Heater, do not select motor speed 1 as LF on the control PCB. Refer to C.5. to change motor speed. Only operate the equipment with an appropriately sized breaker in place and wire sizes with adequate current carrying capacity. Consult with an electrician before attempting electrical installation. PG2024 NA_PCGH‐V/P‐AECM‐001 ... -
Page 32: Control Specifications: Intelligent Control (I Type)
Page 30 Control Specifications: Intelligent Control (I TYPE) I/O Port Definitions I/O Code Description Return air sensor AI1 Return air temperature (Tr) Analogue 2‐pipe coil circuit AI2 Water inlet temperature sensor (Ti1) Input sensor Hot water Sensor AI3 Water outlet temperature sensor (Ti2) LED display / IR X‐DIS 1 Digital communication port to LED display / IR receiver board. receiver Input Wired wall pad TTL1 Digital communication port to wired wall‐pad board. Occupancy contact ON/OFF NO/NC contact by setting Voltage‐free (NC). Float switch Float Digital input The contact is for float switch (NC); Electric Heater safety Voltage‐free (NC). EH switch ... -
Page 33: Wiring Diagram
Page 31 Wiring Diagram iSeriel-AECM-S1-115V Wiring Diagram NEXT UNIT Remote ON/OFF Local operation priority FUSE NO/NC contact by setting A B A B LED display/IR receiver X-DISI Heating signal for heat pump Renturn sensor (Tr) NO contact 2 pipe sensor (Ti1) chilled /hot water 4-pipe coil circut sensor Cooling signal for heat pump... - Page 34 Page 32 iSerial-AECM-S1-220V Wiring Scheme NEXT UNIT Remote ON/OFF Local operation priority FUSE NO/NC contact by setting A B A B LED display/IR receiver X-DISI Heating signal for heat pump Renturn sensor (Tr) NO contact 2 pipe sensor (Ti1) chilled /hot water 4-pipe coil circut sensor Cooling signal for heat pump...
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Page 35: Control Logic For I Control For Ec-S1 (300029=1)
Page 33 Control Logic for I Control for EC‐S1 (300029=1) For 2-Pipe system with Valve Configuration (300046=0) COOL MODE When unit is turned on in cooling mode. a) If Tr ≥ Ts + 1.8 °F (Modbus 300033 setting), MTV1 is turned on. AUX1 is closed. Fan is turned on at setting speed. DA2 is turned on at 10VDC for 2 minutes, then check Ti1, When Ti1<=46.4 °F, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting PID calculation. The output is minimum output (Modbus300015 setting)~10VDc; When 46.4 <Ti1<=50 °F, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 1 PID calculation. The output is minimum output (Modbus300015 setting)~10VDc; When 50 <Ti1<=53.6 °F, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 2 PID calculation. The output is minimum output (Modbus300015 setting)~10VDc; When 53.6 <Ti1<=59 °F, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 3 PID calculation. The output is minimum output (Modbus300015 setting)~10VDc; When 59 <Ti1<=82.4 °F (Modbus 300017 setting), DA2 output is kept at 10Vdc; When Ti1>82.4 °F (Modbus 300017 setting), DA2 output is at minimum (Modbus300015 setting); and report pre‐heat alarm; b) If Tr < Ts‐ 1.8 °F (Modbus 300033 setting), then cool operation is terminated and MTV1 and AUX1 are turned off. Indoor fan runs at set speed. DA2 output is 0Vdc; When unit is turned off, MTV1 and AUX1 are off. DA2 is 0Vdc. Fan is turned off delaying 30s. The range of Ts is 60.8 ‐ 86 °F d) Indoor fan speed can be adjusted to low, medium, high and auto. LOW TEMPERATURE PROTECTION OF COIL IN COOLING MODE If Ti1 ≤ 35.6 °F for 2 minutes, then MTV1 and DA2 are turned off. If indoor fan is set for low speed, then it will run at medium speed. If it is set at medium or high speed, then it will keep running at the same speed. If Ti1 ≥ 41 °F for 2 minutes, then MTV1 and DA2 are turned on. Indoor fan runs at set speed. FAN MODE Indoor fan speed can be adjusted for low, medium and high. If fan speed is set auto by Modbus, fan is running at low speed. ... -
Page 36: Dehumidification Mode
Page 34 With Electrical Heater as primary heat source (300047=2) When unit is turned on in heating mode: When Ti2 ≤ 95 ºF (or Ti2 is broken) and Tr ≤ Ts – 1.8 ºF (Modbus 300033 setting), Fan is turned on at setting speed, EH is turned on. When Tr > Ts + 1.8 ºF (Modbus 300033 setting), EH is turned off. Fan is turned on at low speed. When unit is turned off, EH is turned off. Fan is turned off after 2 minutes. OVER-HEAT PROTECTION OF INDOOR COIL If Ti1 ≥ 167 ºF, then MTV1, AUX2, DA2 and EH are turned off. Indoor fan remains on and runs at high speed. If Ti1 < 158 ºF, then unit keep original state; If the indoor coil temperature sensor is damaged or not connected, then the protection mode will be overridden and the unit will work according to the pre‐heat and post‐heat program. DEHUMIDIFICATION MODE When unit is turned on in dehumidification mode: AUX1 is turned on; Ts is 75.2 ºF; If Tr ≥ 77 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 4 minutes. DA2 is on at 3 times of (Modbus 300015 setting); Fan is turned on at low speed; If 60.8 ºF ≤ Tr < 77 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 6 minutes. DA2 is on at double of (Modbus 300015 setting); Fan is turned on at low speed; If Tr < 60.8 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 10 minutes. DA2 is on at (Modbus 300015 setting); Fan is turned on at low speed; At the end of the above dehumidification cycle, the system will decide the next dehumidification control option. AUTO MODE When unit is turned on in Auto mode, fan is turned on at setting speed for 30s, then check Tr and Ts: If Ts≥Tr+5.4 ºF, the unit runs in heating mode. If Tr‐5.4 ºF<Ts<Tr+5.4 ºF, the unit runs in fan mode. If Ts<Tr‐5.4 ºF, the unit runs in cooling mode. If unit working mode is confirmed, the unit will not change the working mode. After the unit is turned off and restart in 2 hours, working mode will be confirmed again. 4-Pipe System with Modulating Valves (300046=2) COOL MODE a) When unit is turned on in cooling mode. If Tr ≥ Ts + 1.8 ºF (Modbus 300033 setting), MTV1 is turned on. AUX1 is closed. Fan is turned on at setting speed. DA2 is turned on at 10VDC for 2 minutes, then check Tr and Ts; DA2 output is from minimum (Modbus 300015 setting) ~10Vdc based on Tr and (Ts+3.6 ºF) PID calculation; ... -
Page 37: Auto Mode
Page 35 b) When Tr > Ts +1.8 ºF(Modbus 300033 setting), MTV2 and AUX2 is turned off; DA3 is at 0VDc; fan is turned on at lowest speed. When unit is turned off, MTV2 and AUX2 is turned off; DA3 is at 00VDc; Fan is turned off delaying 2 minutes. OVER-HEAT PROTECTION OF COIL If Ti2 ≥ 167 ºF, then MTV2, AUX2, DA2 and EH are turned off. Indoor fan remains on and runs at high speed. If Ti2< 158 ºF, then unit keep original state. If the indoor coil temperature sensor is damaged or not connected, then the protection mode will be overridden and the unit will work according to the pre‐heat and post‐heat program. DEHUMIDIFICATION MODE When unit is turned on in dehumidification mode: AUX1 is turned on. Ts is 75.2 ºF. If Tr ≥ 77 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 4 minutes. DA2 is on at 3 times of (Modbus 300015 setting). Fan is turned on at low speed. If 60.8 ºF ≤ Tr < 77 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 6 minutes. DA2 is on at double of (Modbus 300015 setting). Fan is turned on at low speed. If Tr < 60.8 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 10 minutes. DA2 is on at (Modbus 300015 setting). Fan is turned on at low speed. At the end of the above dehumidification cycle, the system will decide the next dehumidification control option. AUTO MODE When unit is turned on in Auto mode, fan is turned on at setting speed for 30S, then check Tr and Ts. a) If Ts≥Tr+5.4 ºF, the unit runs in heating mode. b) If Tr‐5.4 ºF<Ts<Tr+5.4 ºF, the unit runs in fan mode. If Ts<Tr‐5.4 ºF, the unit runs in cooling mode. If unit runs in heating or fan mode, when Tr‐Ts>5.4 ºF, MTV2, MTV1 and DA3 are off for more than 10minutes, EH is off for more than 10 minutes, the unit will work in cooling mode. If unit runs in cooling or fan mode, when Ts‐Tr>5.4 ºF, MTV2, MTV1 and DA2 are off for more than 10minutes, the unit will work in heating mode 2-pipe with 6-way Modulating Valve (300046=3) COOL MODE a) When unit is turned on in cooling mode. ... - Page 38 Page 36 HEAT MODE Without Electrical Heater (300047=0) a) When unit is turned on in heating mode. When Tr ≤ Ts ‐ 1.8 ºF(Modbus 300033 setting), MTV2 and AUX2 is turned on; DA2 is at 10VDc for 2 minutes, then check Ti1: If Ti1 < 82.4 ºF (Modbus 300017 setting), fan is turned on at low speed; DA2 is at 10Vdc; If 82.4 ºF<Ti1< 28(Modbus 300017 setting)+ 7.2 ºF, fan is on at original state; DA2 is at original state; If Ti1 ≥ 82.4 ºF (Modbus 300017 setting)+ 7.2 ºF, fan is on at setting speed; DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300028 setting PID calculation. The output is 6~10VDC; If Ti1 sensor is damaged, fan is worked at setting speed. b) When Tr > Ts + 1.8 ºF (Modbus 300033 setting), MTV1 and AUX2 is turned off; DA3 is at 5VDc; fan is turned on at lowest speed. When unit is turned off, MTV1 and AUX2 is turned off; DA2 is at 5VDc; Fan is turned off delaying 2 minutes. OVER-HEAT PROTECTION OF COIL If Ti1 ≥ 167 ºF, then MTV1, AUX2, DA2 and EH are turned off. Indoor fan remains on and runs at high speed. If Ti1 < 158 ºF, then unit keep original state; If the indoor coil temperature sensor is damaged or not connected, then the protection mode will be overridden and the unit will work according to the pre‐heat and post‐heat program. DEHUMIDIFICATION MODE When unit is turned on in dehumidification mode: AUX1 is turned on. Ts is 75.2 ºF. If Tr ≥ 77 ºF for 30S, then MTV1 will be ON for 3 minutes, then OFF for 4 minutes. DA2 is 2VDC. Fan is turned on at low speed. If 60.8 ºF ≤ Tr < 77 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 6 minutes. DA2 is 2.5VDC. Fan is turned on at low speed. If Tr < 60.8 ºF for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 10 minutes. DA2 is 3.5VDC. At the end of dehumidification cycle, the system will decide the next dehumidification cycle. AUTO MODE When unit is turned on in Auto mode, fan is turned on at setting speed for 30S, then check Tr and Ts. If Ts≥Tr+5.4 ºF, the unit is worked in heating mode. If Tr‐5.4 ºF<Ts<Tr+5.4 ºF, the unit is worked in fan mode. If Ts<Tr‐5.4 ºF, the unit is worked in cooling mode. If unit works in heating or fan mode, when Tr‐Ts>5.4 ºF, MTV2, MTV1 and DA2 are off for more than 10minutes. EH is off for more than 10 minutes, the unit will work in cooling mode. If unit works in cooling or fan mode, when Ts‐Tr>5.4 ºF, MTV2, MTV1 and DA2 are off for more than 10minutes. the unit will work in heating mode. FOR 2-PIPE AND 4-PIPE SYSTEMS ...
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Page 39: Stepping Motor
Page 37 STEPPING MOTOR For remote handset Whenever the indoor fan is running, the louver can swing or stop at the desired position. Louver angle: 0~100º, opens clockwise with widest angle at 100º. Swing angle: 35~100º, opens clockwise to 68º. Below are the 4 fixed positions which can be set from wireless LCD handset. Position Angle 35º 57º 83º 100º For wired wall pad Louver angle: 0~100º, opens clockwise, with widest angle at 100º. Swing angle: 35~100º, opens clockwise to 68º. User may stop louver at any desired position between 35~100º. BUZZER The unit will beep once when it receives 1 signal. AUTO RESTART The system uses non‐volatile memory to save the current operation parameters when system is turned off or in case of system failure or cessation of power supply. When power supply resumes or the system is switched on again, the same operations as previously settings will function. DRAIN PUMP (IF INSTALLED) Drain pump is turned ON if the unit is turned on in cooling or dehumidification mode. It remains on for 5 minutes after unit is turned OFF. During mode change from cooling or dehumidification to heating or fan mode, the pump will be turned off after 5 minutes. If the system is turned off at the circuit breaker (or main power supply), the drain pump function is off. FLOAT SWITCH (IF INSTALLED) If the float switch (N/C) is opened before the unit is turned on and if running at COOL mode, then MTV1 is turned off. The drain pump will be turned on and indoor fan will keep running. After float switch is closed, MTV1 is turned on. If the unit is turned on in COOL mode and the float switch is opened continuously ≥ 5 seconds, then the drain pump will be turned on and MTV1 will remain off. After the float switch is closed, the drain pump will run for an additional 5 minutes. If the float switch is opened for 10 minutes continuously, then MTV1 will remain off and the indoor fan runs at set speed and the system will report an error signal. ... -
Page 40: Open Modbus Protocol
Page 38 Open Modbus protocol Transfer Mode: RTU BAUD Rate:9600bps, 8 data bit, 1 stop bit, None parity bit The communications require a delay between reading an answer and sending the next command of 80 ms. All temperature is equal to reading data*10 accuracy: 0.2 ºF. Supported Functions Function Code Function description 01(01H) Read Coils 02(02H) Read Discrete Inputs 03(03H) Read Holding Registers 04(04H) Read Input Registers 05(05H) Write Single Coil 06(06H) Write Single Register 15(0FH) Write Multiple Coils 16(10H) Write Multiple Registers 255(FFH) Extended Commands which are used to test. Valid Error code table: Error code description definition 01 (01H) Invalid commands Received commands beyond valid commands 02 (02H) Invalid data address Data addresses beyond valid data address ... - Page 41 Page 39 Holding Register table: Description Address Type* Remark Cooling mode = 01(H) Humidify mode = 02(H) Mode setting 300000 R/W Fan mode = 04(H) Heating mode = 08(H) Auto mode = 10(H) Low speed = 04(H) Medium speed = 02(H) Fan speed setting 300001 R/W High speed = 01(H) Auto fan speed = 07(H) Position 1=01(H) Position2=02(H) Position3=03(H) Louver swing setting 300002 R/W Position4=04(H) Auto=0F(H) Stop=00(H) Setting temperature 300003 R/W 16‐30 (actual*10 format) Address setting 300004 R/W 1‐255 ...
- Page 42 Page 40 Temperature band setting 300033 R/W Reserved 300034 R/W Reserved 300035 R/W Reserved 300036 R/W Reserved 300037 R/W Reserved 300038 R/W Reserved 300039 R/W Reserved 300040 R/W ...
- Page 43 Page 41 Input Register table: Description Address Type* Remark Tr temperature sensor 400000 R Ti1 temperature sensor 400001 R Ti2 temperature sensor 400002 R Reserved 400003 R Reserved 400004 R Bit0 = Room temperature sensor error Bit1 = Ti1 temperature sensor error Bit2 = Ti2 temperature sensor error Bit3 = Float switch error Bit4 = Indoor coil low temperature protection Bit5 = Indoor coil over‐heat protection Bit6 =Filter switch Bit7 = Electrical heater failure Error code 400005 ...
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Page 44: Modbus Network Setup For Fcu Group
Page 42 Modbus Network Setup for FCU group Network Setup 1. Disconnect the communication plug from the control box 2. Communication plug A, B, A, B is printed on the main PCB. When you connect the wires, please ensure connection of A to A and B to B. 3. Connection wire 3.1. If the total length of wire is more than 1000m, please use shielded wire in order to protect the signal transmission. 3.2. Complete wire connection Middle unit Last unit First unit First unit Middle unit ... - Page 45 Page 43 3.3. Wire connection check After the wire connection is completed, please check that the wire colours correspond. 3.3.1. Check the wire contact by using a multimeter. 3.3.2. contact contact contact contact contact contact Check 1 and 2, 3 and 4, 5 and 6 to be sure connections are correct. 3.3.3. If the resistance between two wire contacts is too high, please check and reconnect the wire contacts. 3.3.4. 4. Reconnect the communication plug to control box 5. Using wired wall pad or Modbus to set each unit address. ...
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Page 46: Led Display And Error Description
Page 44 LED Display and Error Description LED receiver in ABS housing with 0.5m or 1.8m pre-wiring Intelligent control PCB – I Type Control Fan speed setting LED indication Condition High speed Red LED On Normal Medial speed Yellow LED On Normal Low speed Green LED On Normal For all units - Green LED Error Description Blink Reason Remedy 1. Check if Tr plug is connected or not. Green LED blinks 1 times, Room sensor unplugged Return air sensor failure stops for 3s or damaged. 2. Check if sensor’s resistance is correct or not. 1. Check if Ti1 plug is connected or not. Indoor coil sensor 1 Green LED blinks 2 times, Ti1 sensor unplugged or failure stops for 3s damaged. 2. Check if sensor’s resistance is correct or not. -
Page 47: Control Specifications: Flexible Function Pcb (W Type)
Page 45 Control Specifications: Flexible Function PCB (W TYPE) Features Condensate management with valve protection and NC alarm contact. Integrated fan relays for zone control applications. ON/OFF thermostat input and low‐voltage modulating fan speed input flexibility. Simple error diagnostic and LED error display. I/O Port Definitions I/O Code Descriptions Coil temperature Analogue input AI1 Cooling / heating coil sensor (Ti1) sensor High fan speed H 230 VAC input signals from wired thermostat Medium fan speed M Low fan speed L 230 VAC input signals from wired thermostat EH signal EH Voltage input (W1‐Used it) Live L1 Neutral N1, N2 ... -
Page 48: Wiring Diagrams
Page 46 Wiring Diagrams PG2024 NA_PCGH‐V/P‐AECM‐001 ... - Page 49 Page 47 PG2024 NA_PCGH‐V/P‐AECM‐001 ...
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Page 50: Control Logic Specification For Ec-W1
Page 48 Control Logic Specification for EC‐W1 UNIT POWER ON/OFF The unit is turned ON when any of the fan speed inputs (H/M/L) are ON, or modulating signal input is more than 2.0VDC or Motor RPM writing (MS30006) is above 200RPM. The unit is turned OFF only if all of the fan speed inputs (H/M/L) are OFF and modulating signal input is less than 2.0VDC and Motor RPM writing(MS30006) is 0; ALARM PROTECTION AND ERROR DISPLAY If the float switch is open for 5 minutes or EC motor fails, then the (NC) voltage‐free alarm contact shall be open and the (NO) voltage free alarm contact shall be closed. If the float switch is open for 10 minutes or EC motor fails, the LED display reports a condensate management failure (see table on the next page). DRAIN-PUMP OPERATION a) When the unit turns ON: If Ti1 < 57.2 ºF, the drain pump turns ON. If 57.2ºF≤Ti<60.8 ºF, the drain pump keeps original state. If Ti1 ≥ 60.8 ºF, the drain pump turns OFF. b) When the unit turns OFF , the drain pump will remain ON for 5 minutes and then turn OFF. At any time: If the float switch is OPEN, the drain pump will turn ON. If the float switch is OPEN and then CLOSES, the drain pump will remain ON for 5 minutes, and then turn OFF. LOUVER CONTROL FOR W1 When the unit is OFF, the louvers are closed . When the unit turns ON, the louvers open at optimum angle. When the unit turns OFF, the louvers return to a closed position (100º against the vertical). MODULATING SIGNAL INPUT The standard configuration is for 0~5VDC modulating signal input. The optional configuration is for 0~10VDC modulating signal. To set the PCB to the optional configuration, the S1 jumper must be closed. ELECTRICAL HEATER OPERATION ... -
Page 51: Open Modbus Protocol
Page 49 Open Modbus protocol Transfer Mode: RTU BAUD Rate:9600bps, 8 data bit, 1 stop bit, None parity bit The communications require a delay between reading an answer and sending the next command of 80ms. Holding Register table Description Address Type* Remark Motor1 minimum RPM 30000 200~1500rpm700 (CN4 Port) Motor1 maximum RPM 30001 200~1500rpm (CN4 Port) Motor2 minimum RPM 30002 200~1500rpm (CN5 Port) Motor2 maximum RPM 30003 200~1500rpm1350 (CN5 Port) Motor qty setting 30004 R/W 0=EC motor1 working 1=EC motor2 working 2=EC motor 1/2 working default: 2 Reserved 30005 Motor1 RPM writing 30006 ... -
Page 52: Led Display And Error Description
Page 50 LED Display and Error Description Flexible Control PCB - W Control Type Fan speed setting LED Display Condition High speed Red LED On Normal Medium speed Yellow LED On Normal Low speed Green LED On Normal For all units - Green LED blinks Item Blink Reason Remedy 1. Check if Ti1 plug is Indoor coil sensor 1 failure Green LED blinks 4 times, Ti1 sensor connection is not connected or not. stops for 3s ... -
Page 53: User Interface
Page 51 User Interface Remote Handset for I Type Control Interchange F and C on Display Press up and down buttons for 3 seconds, then release. Louver - It is not available. Swing – It is not available. Attention When unit with handset is master, settings are automatically sent to slaves; Auto Cool‐Heat operation will be applicable in 4‐pipe system only. “Louver” and “Swing” are not applicable. European version uses degree C setting. PG2024 NA_PCGH‐V/P‐AECM‐001 ... -
Page 54: Wired Wall Pad Controller For I-Control
Page 52 Wired Wall Pad Controller for I‐Control LED display Code Legend Code Legend Code Legend S1 Monday S14 Heating Mode S27 Fahrenheit degree S2 Tuesday S15 Ventilation Mode S28 Celsius degree S3 Wednesday S16 Auto Mode S29 Fan S4 Thursday ... -
Page 55: Operation Guide
Page 53 Operation guide S38 On/OFF Press to turn on; press it again to turn off. Button S39 Mode With wall pad on, press to select Cooling, Dehumidification, Heating, Ventilation or Auto button sequentially. S40 Fan Speed Button Press , S30 is recycled from 0 to3;0_Auto speed, 1_Low speed; 2_Medium speed; 3_High speed. S41 Parameter Setting Press for 5S to set weekly date. Press or to set weekly date from Monday to Button Sunday Press once to set real time. Press ... - Page 56 Page 54 S31/S32 is display”U012”, which is used to set setting RH point. 30‐70, default: 50 S31/S32 is display”U013”, which is used to set setting RH band. 10‐30, default: 10; S31/S32 is display”U014”, which is used to set unit address; 1‐255, default: 1 ; S31/S32 is display”U015”, which is used to set unit ESP; 0‐100%, default: 40%, S31/S32 is display”U016”, which is reserved. S31/S32 is display”U017”, which is use to set software. (please refer to different PCB) 0=2‐pipe with valve 1=2‐pipe without valve 2=4‐pipe with std valve 3=4‐pipe with 6‐way valve S31/S32 is display “U018”, which is reserved. S31/S32 is display “U019”, which is use to set DA1 function When U001=2, 3 U019=0, Fan control signal is based on Tr, Ts PID calculation U019=1, Fan control signal is based on ESP PID calculation S31/S32 is display”U020”, which is use to calibrate the sensor on the wired wall pad. ‐5‐5, default: ‐3 S31/S32 is display”U021”, which is use to set EH function U021= 0, without EH; U021= 1, EH as booster; U021=2, EH as primary; S31/S32 is display”U022”, which is use to select Tr sensor; ...
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Page 57: Error Code List
Page 55 Bit15 =AQI Error Combination Screen Lock Function Button Function Press for 5S, S19 appears and screen is locked. Repress for 5S, S19 disappears and screen can be set. Swings Function Press for 5S, S18 appears and swings is ON; Repress for 5S, S18 disappears and swings is OFF; Sleep Mode Press for 5S, S17 appears and sleep mode is ON; Repress for 5S, S17 disappears and sleep mode is OFF; Error Code List Error Description Code Reason Remedy 1. Check if Tr plug is connected or not. Room sensor unplugged or Room temperature sensor error E1 damaged. 2. Check if sensor’s resistance is correct or not. 1. Check if Ti1 plug is connected or not. Ti1 sensor unplugged or Indoor coil sensor 1 failure E2 damaged. 2. Check if sensor’s resistance is correct or not. -
Page 58: Dimensions And Installation
Page 56 Dimensions and installation 1. Remove the screw on the bottom and remove the 2. Fix the back panel to wall and then connect the back connection panel. Display on the back panel. PG2024 NA_PCGH‐V/P‐AECM‐001 ... -
Page 59: Sensor Resistance R-T Conversion Table
Page 57 Sensor Resistance R-T Conversion Table Resistance: R (77°F) = 10KΩ ± 1% Beta Constant: B (25/85) = 3977 ± 1% T Rmin Rnom Rmax Rmin Rnom Rmax (°F) (KΩ) (KΩ) (KΩ) (°F) (KΩ) (KΩ) (KΩ) ‐22 174 182.7 191.8 39.2 26.11 26.9 27.71 ‐20.2 163.4 171.5 179.9 24.85 25.59 26.34 ‐18.4 153.6 161.1 ... -
Page 60: Troubleshooting
Page 58 Resistance: R (77°F) = 10KΩ ± 1% Beta Constant: B (25/85) = 3977 ± 1% T Rmin Rnom Rmax Rmin Rnom Rmax (°F) (KΩ) (KΩ) (KΩ) (°F) (KΩ) (KΩ) (KΩ) 100.4 5.614 5.759 5.907 1.417 1.474 1.532 102.2 5.387 5.53 5.673 168.8 1.37 1.426 1.482 104 5.172 5.31 5.451 170.6 1.326... - Page 61 NORTH AMERICA EUROPE HONG KONG 991 Providence High C/ Rio Jucar, Nave 6. Pl El Saladar Office 6, 9th Floor, Block A, 6 on Ping Street Norwood, MA, 02065, USA Lorqui, Murcia, Spain, 30564 New Trade Plaza, Shatin, Hong Kong, T (+1) 508 294 2356 T (+34) 968 046 262 T (852) 2648-8887...
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