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Related Manuals for Polar Air PHW-V-AECM Series
Summary of Contents for Polar Air PHW-V-AECM Series
- Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PHW-V/P-AECM HIGHWALL...
- 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 the stringent requirements of the and manufacturing technology, we produce over 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 All products conform to UL standard for In order to guarantee the very highest standards and Safety for Heating and Cooling performance, ...
- Page 3 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 Action prohibited PG2024 NA_PHW‐V/P‐AECM‐001 ...
- Page 4 Page 2 FAN COIL SAFETY GUIDE CAUTION: Care must be taken when handling sheet Please read the information in this document carefully prior to metal. Sheet metal parts have sharp edges and could attempting the installation, operation and/or servicing of the cause 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 Specifications ................................. 6 MCA and MOP Data ................................ 8 Coil Data .................................... 8 Dimensional Drawings ................................ 9 Sound Data ..................................10 Installation ................................... 12 Safety Precautions ................................12 Before Installation ................................13 Mounting Plate Dimensions ..............................14 ... - Page 6 Page 4 MODEL CODE NOMENCLATURE PHW ‐ 200 ‐ V I ‐ AECM AECM EC Motor Configuration I Intelligent control Flexible function onboard PCB with louver and W zone control functionality. V 2‐Pipe System P 4‐Pipe System VEH Chilled Water, 2‐Pipe with Electric Heater 200/300/40 Unit size. See General Specifications for 0/500/600/ cooling/heating capacities 750 PHW Hydronic High‐Wall Series PG2024 NA_PHW‐V/P‐AECM‐001 ...
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Page 7: Technical Data
Page 5 Technical Data General Description This High‐ Wall Unit is designed to meet and exceed demanding requirements for efficiency, quiet operation and appearance. The sleek profile and elegantly styled cabinet complement any interior design theme, while the microprocessor assures accurate environmental control. CABINET ‐ the stylish cabinet is constructed of durable flame‐resistant acrylonitrile‐butadiene‐styrene (ABS) plastic. Silver white and rounded corners make it modern. WATER COIL ‐ the water coil has a large heat transfer surface and utilizes the latest fin profile technology. It combines an advanced technology approach with the security of a traditional design regarding tube thickness. The coil is 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. INTEGRAL HOSES ‐ an integral hose is a synthetic elastomer tube, with stainless steel outer braiding and brass connectors, which enables quick, low cost connections with no brazing. ... -
Page 8: General Specifications
Page 6 General Specifications PHW‐V‐AECM Series 2‐pipe Specifications according to AHR standard 440 PHW‐[Size]‐V‐AECM 200 300 400 500 600 750 Configuration 2‐pipe Number Of Fan Blowers Single Power Supply (V/Ph/Hz) 208‐240/1/60 or 110‐120/1/60 223 323 400 464 617 735 H 159 223 323 353 500 600 Air Flow M 117 159 200 224 300 353 L 6243 8499 ... - Page 9 Page 7 PHW‐P‐AECM Series 4‐pipe Specifications according to AHR standard 440 PHW‐[Size]‐P‐AECM 500 750 Configuration 4‐pipe Number Of Fan Blowers Single Power Supply (V/Ph/Hz) 208‐240/1/60 or 110‐120/1/60 464 735 H 353 600 Air Flow M 224 353 L 10623 16566 H 8706 14124 Cooling Capacity M 6120 9385 L BTU/Hr 7099 11067 H 5725 9297 Sensible Cooling Capacity M 3939 ...
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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) 11.2 0.28 PHW‐200 15 11.3 0.43 PHW‐300 15 17.0 0.65 PHW‐400 15 17.1 0.83 PHW‐500 15 17.4 1.09 PHW‐600 15 17.7 1.41 PHW‐750 15 220V With Electric Heater Without Electric Heater MODEL MCA (A) MOP (A) MCA (A) ... -
Page 11: Dimensional Drawings
Page 9 Dimensional Drawings Dimensional drawing for PHW‐200/300/400/500‐AECM: Dimensional drawing for PHW‐600/750‐AECM: (All dimensions are approximate and within 1/16 of an inch of those indicated.) 200 300 400 500 600 750 Model PHW Material Nylon filter with ABS frame Number 2 Air Length inch 12 13/16 12 13/16 12 13/16 12 13/16 16 11/16 16 11/16 filter Size Width inch 12 3/16 12 3/16 12 3/16 12 3/16 13 11/16 13 11/16 Thickness inch 1/16 PG2024 NA_PHW‐V/P‐AECM‐001 ... -
Page 12: Sound Data
Page 10 Sound Data Model PHW‐200/300/400/500 Speed 100RP 200RP 300RP 400RP 500RP 600RP 700RP 800RP 900RP 1000RP 1100RP 1200RP 1300RP 1400RP M M M M M M M Sound Power 32.2 32.3 32.8 33.1 35.2 35.6 39.1 43.5 47.4 50.6 53.7 56.2 59.3 61.3 ... - Page 13 Page 11 Model PHW‐600/750 Speed 100RPM 200RPM 300RPM 400RPM 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power 32.7 32.3 33.0 34.6 35.2 36.9 40.2 45.1 48.6 51.8 54.3 56.9 59.2 61.3 dB(A) 20.0 19.4 19.5 20.8 20.0 18.9 19.8 ...
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Page 14: Installation
Page 12 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 or mental capabilities, or persons lacking in experience and knowledge of the appliance, unless they have been given supervision or instruction concerning it. • User of this appliance is responsible for his/her own safety. • Warranty shall be voided if installation instructions and safety precaution stated in this manual are not observed. • The unit should only be switched off by using the ON‐OFF button on the control interface. • To select proper pipe pliers for pipe connections, according to pipe diameter to avoid damaging units by excessive force. • When units are in cooling mode, Cooling water temperature ≥ 45 °F is suggested; When units are in heating mode, hot water temperature ≤ 140 °F is suggested. CAUTIONS Before any service or maintenance operations turn off the mains electrical supply. DO NOT turn OFF the main power supply when the unit is operating. Turn off the unit BEFORE disconnecting the main power. Attach the connections by tightening the fan coil fitting using 2 wrenches. Supply and return piping connections require the use of two wrenches to ensure the tightness of the NPT fitting. ... -
Page 15: Before Installation
Page 13 Operating Limits Power supplies Volt Phase Hz Model 208~240 1 60 PHW‐VX‐AECM 110~120 1 60 PHW‐VY‐AECM Water circuit Minimum entering water temperature +2°C (35.6°F) Maximum entering water temperature +80°C (176°F) Coil tested maximum pressure 1600kPa ( ) 232 psi Before Installation Select the location for the high‐wall unit with the following considerations: 1. The air inlet and outlet area should be clear without obstructions. The air should flow freely. 2. The high wall unit should be mounted on solid wall. 3. The location should allow easy access to connect water pipes easily achieve drainage. 4. Ensure the clearance around the fan coil unit conforms to the following drawing. Higher than eye level Notes for above diagram: ... -
Page 16: Mounting Plate Dimensions
Page 14 Mounting Plate Dimensions (*All dimensions are approximate within 1/16 of an inch of those indicated) Mounting Plate Installation 1. Select the structural position (e.g. a pillar or lintel) on the wall. 2. Temporarily fasten the mounting plate on the wall with a steel nail. 3. Mount the mounting plate horizontally as shown in the above figure or by means of level. Failure to follow this may cause water to drip indoors and create atypical noise. 4. Fix the mounting plate by means of expansion screws or tapping screws. PG2024 NA_PHW‐V/P‐AECM‐001 ... -
Page 17: Condensate Drainage Hole Drilling
Page 15 Condensate Drainage Hole Drilling 1. Ensure that the hole for condensate drainage is correctly positioned. The height should be lower than the bottom edge of the indoor unit. 2. Drill a 65mm diameter hole with a descending slope. 3. Seal it off with putty after installation. CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. PG2024 NA_PHW‐V/P‐AECM‐001 ... -
Page 18: Hydronic Unit Installation
Page 16 Hydronic Unit Installation 1. Pass the piping through the hole in the wall and hook the indoor unit on the mounting plate by the upper hooks. 2. Move the body of the unit from side to side to verify if it is securely fixed. 3. While pushing the unit toward the wall, lift it slightly from beneath to hook it up on the mounting plate by the lower hooks. 4. Make sure the unit firmly rests on the hooks of the mounting plate. Drainage Piping Works 1. Install the drain hose so that it slopes downward slightly for free drainage. Avoid installing it as shown in the below illustrations marked with an “X”. 2. Put water in the drain pan and make sure that the water drains outdoors. 3. If the flexible drain hose provided with the indoor unit is not long enough, please extend it by joining it to an extension hose (not provided). Be sure to insulate the connecting part of the extension drain hose with a shield pipe as shown. 4. If the attached drain hose passes through an indoor area, insulate it with heat insulation material. CAUTION: Care must be taken when handling sheet metal. Sheet metal parts have sharp edges and could cause injury. ... -
Page 19: Valve Connection
Page 17 Valve Connection 2‐pipe system Control system Valve body with actuator Flexible hose (Modulating or ON/OFF) 4‐pipe system Valve body with actuator (Modulating or ON/OFF) ... -
Page 20: Maintenance
Page 18 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 if installed. Verify air filter is clean and properly installed. Ensure that voltage and current values correspond with the unit nameplate values check electrical connections. Verify louver is open. Maintenance Opening and Closing Of Lift‐Up Grille Cover Open the grille cover by lifting from the bottom position Close the grille cover by pressing down at the positions indicated by the arrows. indicated by the arrows. Front Cover Assembly Removal 1. Set the horizontal louver to the horizontal position. 2. Remove the screw caps below the louver, and then remove the mounting screws (red circles in below picture). 3. Open the lift‐up grille cover by grasping the panel at both sides as shown above. 4. Remove the remaining screws located in the center of the front cover. 5. Grasp the lower part of the front cover and pull the entire assembly out and up towards you. Air Vent and Water Purge Valves 1. After connecting the water inlet and outlet pipes to the main supply lines turn on the main breaker and operate the unit in COOLING mode. 2. Open the water inlet valve and flood the coil. 3. Check all connections for water leakage. If no leak is found, open the purging valve with an open‐end wrench while supporting the unit with your other hand. Then purge the air trapped inside the coil. When performing this activity, take care not to touch the electrical parts. 4. Close the purging valve when no bubbles appear. 5. -
Page 21: Control Specifications: Intelligent Control (I Type)
Page 19 Control Specifications: Intelligent Control (I TYPE) I/O Port Definitions I/O Code Description Return air Sensor Return air temperature (Tr) Analogue Chilled water Sensor Water inlet temperature sensor (Ti1) Input Hot water Sensor Water outlet temperature sensor (Ti2) IR receiver X‐DIS 1 Digital communication port to LED display/IR receiver board. Input Wired wall pad TTL1 Digital communication port to wired wall‐pad board. NO/NC contact by setting Occupancy contact ON/OFF Voltage‐free (NC). Digital input Float switch Float The contact is connected with float switch (NC); Electrical heater safety Voltage‐free (NC). EH switch The contact is connected with E‐heater safeties. Live Power input Neutral Power supply Earth ... -
Page 22: Wiring Diagram
Page 20 Wiring Diagram iSerial-PHW-AECM-S-115V Wiring Scheme PROs SWITCH TERMINAL ON/OFF AI3 AI2 Float Main power supply 115V/1P/60Hz Legend: Yellow/Green FUSE L1\N: Power supply VALVE1 VALVE1: 115V on/off valve output; prog VALVE2: 115V on/off valve output; VALVE2 PUMP: 115V condensate pump output (reserved) HEAT HEAT: Electrical heater AI1:Return air temperature sensor(Tr) ;... - Page 23 Page 21 iSerial-PHW-AECM-S-220V Wiring Scheme PROs SWITCH TERMINAL ON/OFF AI3 AI2 Float Main power supply 220V/1P/60Hz Legend: Yellow/Green FUSE L1\L2: Power supply VALVE1 VALVE1: 220V on/off valve output; prog VALVE2: 220V on/off valve output; VALVE2 PUMP: 220V condensate pump output (reserved) HEAT DISPLAY HEAT: Electrical heater...
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Page 24: Control Logic For I Control For Ec-S1 (300029=1)
Page 22 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. HEAT MODE Heat mode without electrical heater (300047=0) a) When unit is turned on in heating mode. When Tr ≤ Ts – 1.8 °F (Modbus 300033 setting), MTV1 and AUX2 is turned on; DA2 is at 10VDc for 2 minutes, then check Ti1: If Ti1 < 82.4 °F (Modbus 300017 setting), fan is turned on at low speed; DA2 is at 10Vdc; ... - Page 25 Page 23 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, 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. For 2‐Pipe system without Valve Configuration (300046=0) COOL MODE When unit is turned on in cooling mode. If Tr ≥ Ts + 1.8 °F (Modbus 300033 setting), AUX1 is closed. Fan is turned on at setting speed. If Tr < Ts‐ 1.8 °F (Modbus 300033 setting), then cool operation is terminated and AUX1 is turned off. Indoor fan runs at super low speed; When unit is turned off, AUX1 is off. Fan is turned off delaying 30s. The range of Ts is 60.8 ‐ 86 °F 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, Indoor fan is turned on to Medium speed if fan runs at low speed. If Ti1 ≥ 41 °F for 2 minutes, Indoor fan is changed to setting 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 26 Page 24 Heat mode with Electrical Heater as booster (can not be set) OVER‐HEAT PROTECTION OF INDOOR COIL If Ti1 ≥ 167 ºF, then AUX2is 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; Fan is turned on at low speed. AUTO MODE can not be set. 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; If Tr < Ts‐1.8 ºF(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; b) 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 ºF 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 ºF for 2 minutes, MTV1 is turned OFF. DA2 is 0VDC. Indoor fan is set at Medium speed if fan runs at low speed. If Ti1 ≥ 41 ºF for 2 minutes, MTV1 is turned ON. DA2 is set to original status. Indoor fan is changed to set speed. FAN MODE Indoor fan speed can be adjusted for low, medium and high. If fan speed is set at auto by Modbus, fan will run at low speed. 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; DA3 is at 10VDc for 2 minutes, then check Ti2: ...
- Page 27 Page 25 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. 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 0VDC for 2 minutes, then check Ti1, When Ti1<=46.4 ºF, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting PID calculation. The output is 4~0VDc; When 46.4 ºF <Ti1<=50 ºF, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 1 PID calculation. The output is 4~0VDc; When 50 ºF <Ti1<=53.6 ºF, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 2 PID calculation. The output is 4~0VDc; When 53.6 ºF <Ti1<=59 ºF, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting minus 3 PID calculation. The output is 4~0VDc; When 59 ºF <Ti1<=82.4 ºF (Modbus 300017 setting), DA2 output is kept at 0Vdc; When Ti1>82.4 ºF (Modbus 300017 setting), DA2 output is 4Vdc; and report pre‐heat alarm; If Tr < Ts‐ 1.8 ºF (Modbus 300033 setting), then cool operation is terminated and MTV1 and AUX1 are turned off. Indoor fan runs at set speed. DA2 output is 5Vdc; b) When unit is turned off, MTV1 and AUX1 are off. DA2 is 5Vdc. Fan is turned off delaying 30s. The range of Ts is 60.8 ‐ 86 ºF 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 ºF for 2 minutes, MTV1 is turned OFF. DA2 is set to 5Vdc. Indoor fan is turned on at Medium speed if fan runs at low speed. If Ti1 ≧ 41 ºF for 2 minutes, MTV1 is turned ON. DA2 is set to original status. Indoor fan is changed to set speed. FAN MODE Indoor fan speed can be adjusted for low, medium and high. If fan speed is set auto by Modbus, fan runs at low speed. HEAT MODE Without Electrical Heater (300047=0) ...
- Page 28 Page 26 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 PRO (N/O signal input) When Modbus 100004=0; The unit is on: PRO input is closed for 60S, the unit is turned off. PRO input is open for 60S, the unit is turned on. When Modbus 100004=1; 1) The unit is on or standby, PRO input is open or closed, the unit is kept original state; 2) The unit is off, PRO input is closed for 30S, MTV1 is turned on, DA2 is open at double of minimum setting (Modbus 300027 setting), Fan is turn on at low speed; PRO input is opened for 30S, MTV1 is off, DA2 is 0Vdv, Fan is turn off. 3) In period of PRO closed time, if unit receives instruction from remote handset, wired wall pad or Modbus, the unit will work according to the instruction at once. SLEEP MODE SLEEP mode can only be set when the unit is in COOL or HEAT mode. In COOL mode, after SLEEP mode is set, the indoor fan will run at auto speed and Ts will increase by 0.9 ºFfor every 30mins. In HEAT mode, after SLEEP mode is set, the indoor fan will run at auto speed and Ts will decrease by 0.9 ºFfor every 30 minutes. Sleep mode is turned off, the setting temperature resumes and Fan is changed to setting speed. FAN SPEED In COOL/HEAT mode, the fan speed cannot be changed until it has run for more than 30 seconds. 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. ...
- Page 29 Page 27 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. If the unit is off and the float switch is opened, then the drain pump will be turned on. 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 the system will report an error signal. EH PROTECTION SWITCH Before the electrical heater is turned on, the EH safety switch must be closed, EH is open for 3 minutes and EC motor RPM must be more than MODBUS300020 setting When electrical heater is ON, electrical heater safety switch is opened for ≥ 1 second or EC motor RPM is lower than Modbus 300020 setting, EH will be turned off immediately and report an error and fan speed is changed to high speed. Once the contact is returned to the closed ≥ 180 seconds and EC motor RPM must be more than MODBUS300020 setting, reset the error and the heater will start again. When the EH safety switch is opened ≥ 3 times within 60 minutes the heater is not allowed to start anymore. Turn off the unit to reset the fault, provided that the switch has returned to the closed position. LOW TEMPERATURE PROTECTION OF COIL IN WINTER This is frost protection when the unit is off to prevent water from freezing in the coil. If a 2‐pipe system is in Standby Mode, when Tr ≦ 35.6 ºF for 2 minutes, MTV1 is turned on. AUX2 is on. DA2 is 5VDC. If Ti1 < 41 ºF for 2 minutes, EH (if installed) is switched on. Indoor fan is turned on at low speed. If Tr ≧ 41 ºF for 2 minutes, MTV2 is turned off. AUX2 is off. DA2 is 0VDC. EH (if installed) is turned off. Indoor fan is switched off. If a 4‐pipe system (or 2‐pipe unit with 6‐way valve) is in Standby Mode, when Tr ≦ 35.6 ºF for 2 minutes, MTV2 is turned on. AUX2 is on. DA3 is 5VDC (DA2 is 8VDC if using 6‐way valve). If Ti1 < 41 ºF for 2 minutes EH (if installed) is switched on. Indoor fan is turned on at low speed. If Tr ≧ 41 ºF for 2 minutes, MTV2 is turned off. AUX2 is off. DA3 is 0VDC (DA2 is 5VDC if using 6‐ way valve). EH (if installed) is turned off. Indoor fan is switched off. ...
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Page 30: Open Modbus Protocol
Page 28 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 03 (03H) ... - Page 31 Page 29 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 Reset 300005 ...
- Page 32 Page 30 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 Reserved 300041 R/W Reserved 300042 R/W ...
- Page 33 Page 31 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 R Bit8 = Motor1 Error Bit9 =Motor2 Error Bit10 = System parameters error ...
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Page 34: Modbus Network Setup For Fcu Group
Page 32 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 Last unit ... - Page 35 Page 33 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 36: Led Display And Error Description
Page 34 LED Display and Error Description Power / Operation LED light (both green) Unit on Power LED Off, Operation LED On Unit in standby Power LED On, Operation LED Off For all units ‐ Green LED LED Error Description Blink Reason Remedy display 1. Check if Tr plug is connected or not. Return air sensor Green LED blinks 1 Room sensor E1 failure times, stops for 3s unplugged 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 Ti1 sensor unplugged E2 failure times, stops for 3s or damaged. 2. Check if sensor’s resistance is correct or not. Indoor coil sensor 2 Green LED blinks 3 ... -
Page 37: Control Specifications: Flexible Control Pcb (W Type)
Page 35 Control Specifications: Flexible Control PCB (W TYPE) I/O Port Definitions I/O Code Descriptions Analogue Input Chilled water Sensor AI1 Coil sensor (Ti1) Power input R1 24VAC input signals from wired thermostat. R2 Med R3 Hi EH CN4 24VAC input signals from wired thermostat. Live L Power supply to the PCB and all the loads connected to the Power input Neutral N voltage outputs. Earth GND Digital input Wired wall pad TTL Adjust EC motor RPM 0 to +5VDC，SW1=0 0 to+5VDC Signal input Signal (0~10VDC) (0~10VDC, SW1=1) ... -
Page 38: Wiring Diagram
Page 36 Wiring diagram iSerial-PHW-AECM-W-115V Wiring Scheme TEMP. SWITCH 230F EH signal (24Vac) Electrical heater FUSE SWITCH CN3 MOTOR TERMINAL Main Power supply 115V/1Ph/60hz FUSE RY-10A Low speed control signal (24Vac) Med. speed control signal (24Vac) 24V-N Hi speed control signal (24Vac) Modbus Ports DIPs1-s4 1 2 3 4... - Page 39 Page 37 iSerial-PHW-AECM-W-220V Wiring Scheme TEMP. SWITCH 230F EH signal (24Vac) Electrical heater FUSE SWITCH CN3 MOTOR Main Power supply 220V/1Ph/60hz FUSE BLDC RY-10A Low speed control signal (24Vac) Med. speed control signal (24Vac) 24V-N Hi speed control signal (24Vac) Modbus Ports DIPs1-s4 0-10VDC INPUT...
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Page 40: Control Logics
Page 38 Control Logics 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). 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 After unit is turned ON, EH relay will be ON when EH signal is powered ON and EC motor RPM>300. If EC motor fails or EC motor RPM is lower than 300 RPM, EH relay is opened at once. LOW TEMPERATURE PROTECTION OF INDOOR COIL IN WINTER When MS30012=0, the function is able; When MS30012=1, the function is disable; This is frost protection for when the unit is off to prevent water in the coil and room from freezing. UNIT IS IN STANDBY MODE If Ti1 35.6 ºF for 2 minutes, report error code and Buzzer is beeping. ... -
Page 41: Modbus Protocol
Page 39 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. 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 MS30006=0~200, Motor1 works according to signal input1; MS30006=above 200, Motor1 RPM is according to RPM writing. ... -
Page 42: Led Display And Error Description
Page 40 LED Display and Error Description Power / Operation LED light (both green) Unit on Power LED Off, Operation LED On Unit in standby Power LED On, Operation LED Off For all units Power / Operation LED light (both green) Unit on Power LED Off, Operation LED On Unit in standby Power LED On, Operation LED Off For all units ‐ Operation LED light (Green) Item Blink LED Display Reason Remedy 1. Check if Ti1 plug is connected or Ti1 sensor connection Indoor coil Green LED blinks 4 not. E4 is unplugged or sensor 1 failure times, stops for 3s 2. Check if sensor’s resistance is damaged. correct or not. 1. Check if EC motor’s wires are Green LED blinks 9 ... -
Page 43: User Interface
Page 41 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_PHW‐V/P‐AECM‐001 ... -
Page 44: Wired Wall Pad Controller For I-Control
Page 42 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 S17 Sleep mode S30 ... -
Page 45: Operation Guide
Page 43 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 Long press for 5 seconds to set today’s day of week. Press or to change from Monday Button to Sunday. Long press for 5 seconds then short press it once to set current time. Press or to change current time. Long press for 5 seconds then short press it twice to set Timer ON. Press to set day of week from Monday to Sunday. Press or ... - Page 46 Page 44 S31/S32 displays “U005”, which is used to set setting temperature band. 1~9°C. S31/S32 displays “U006‐U009”, which are reserved to set parameters with optional accessory to measure PM2.5 and CO2 values. S31/S32 is display” U010‐U011”, which are reserved. 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 used 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 used to set DA1 function. When U001=2, 3 U019=0, Fan control signal is based on Tr, Ts PID calculation. ...
- Page 47 Page 45 S32 Error code S32: E** blinks 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 Bit8 = Motor1 Error Bit9 =Motor2 Error Bit10 = System parameters error Bit11 = Anti‐frozen error Bit12 = Ti3 temperature sensor error Bit13 = Ti4 temperature sensor error Bit14 =PM2.5 sensor 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. ...
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Page 48: Error Code List
Page 46 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. 1. Check if Ti2 plug is connected or not. Ti2 sensor unplugged or Indoor coil sensor 2 failure E3 damaged. 2. Check if sensor’s resistance is correct or not. 1. Check if the condensate water pipe is connected or not. Float switch error E4 Float switch is opened. 2. Check if the pump is functioning or not. Indoor coil low temperature Water temperature is lower E5 Check the water temperature. protection than 37.4 ºF. Water temperature is higher Indoor coil over‐heat protection E6 Check the water temperature than 158 ºF. ... -
Page 49: Dimensions And Installation
Page 47 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_PHW‐V/P‐AECM‐001 ... -
Page 50: Sensor Resistance R-T Conversion Table
Page 48 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 ‐18.4 153.6 161.1 168.9 42.8 23.65 24.35 ... -
Page 51: Troubleshooting
Page 49 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 1.379 ... - Page 52 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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Questions and answers
Can the Occupancy contact be used to turn the unit on and off via BMS I/O? And what set-up is required?
Yes, the Occupancy contact on the Polar Air PHW-V-AECM Series can be used to control the unit's power via BMS I/O. The contact is a voltage-free (NC) digital input, meaning it can be controlled by an external system such as a Building Management System (BMS). To set it up, configure the contact as NO or NC as required by the BMS and connect it accordingly. When the contact is activated, it will turn the unit ON or OFF based on the setup.
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