Subscribe to Our Youtube Channel
Related Manuals for SystemAir PAW-200W5APAC
Summary of Contents for SystemAir PAW-200W5APAC
- Page 1 Installation and maintenance manual WATER HEAT EXCHANGER English PAW-200W5APAC PAW-250W5APAC 25 kW 30 kW Part number: 374736D Supersedes: 374736C ISO 9001:2015 certified management system...
-
Page 3: Table Of Contents
Table of Contents 1 - FOREWORD 6 - CONTROL 1.1 Introduction ................2 6.1 System Control ............22 to 24 1.2 Warranty ................2 6.2 Circuit board controls and connectors ........25 1.3 An introduction to the manual ..........2 6.3 WHE Wiring Diagram ............26 2 - SAFETY 7 - PRODUCT DESCRIPTION 2.1 Foreword ................3... -
Page 4: Foreword
1 - Foreword 1.1 Introduction 1.3 An introduction to the manual Units, manufactured to state-of-the-art design and implementation For safety reasons, it is imperative to follow the instructions given standards, ensure top performance, reliability and fitness to any type in this manual. In case of any damage caused by non-compliance of air-conditioning systems. -
Page 5: Safety
2 - Safety 2.1 Foreword These units must be installed in conformity with the provisions of Machinery Directive 2006/42/EC, It is the User’s responsibility to ensure that the unit is fit for the conditions of intended use Electromagnetic Compatibility Directive 2014/30/EU, as and that both installation and maintenance are well as with other regulations applicable in the country of carried out by experienced personnel, capable... -
Page 6: Definitions
2 - Safety 2.2 Definitions 2.4 Precautions against residual risks OWNER: means the legal representative of the company, body or Prevention of residual risks caused by the control individual who owns the plant where unit has been installed; he/she system has the responsibility of making sure that all the safety regulations specified in this manual are complied with, along with the national be sure to have perfectly understood the operating instructions... -
Page 7: Precautions During Maintenance Operations
2 - Safety 2.5 Precautions during maintenance operations Install safety valves on the refrigeration circuis to a piping network Maintenance operations can be carried out by authorised technicians that can channel any overflowing refrigerant outside only. remove any leak of fluid inside and outside the unit Before performing any maintenance operations: collect the waste liquids and dry any oil spillage Make sure a sufficient forced ventilation is present in the room... -
Page 8: Safety Labels
(max) POTENZA ASSORBITA (max) Kw POWER INPUT PRESS. MAX ESERCIZIO ACQUA MAX WATER OPERATING PRESSURE MASSA MASS SYSTEMAIR S.r.l. Via XXV Aprile 29 20825 BARLASSINA MB ITALIA MADE IN ITALY COD.NO: P35952 MODELLO: MODEL MATRICOLA: SERIAL NO. CODICE: ANNO DI COSTRUZIONE PRODUCT CODE Manuf. - Page 9 2 - Safety 2.7 Precaution for Using R32 Refrigerant Servicing shall be performed only as recommended by the The basic installation work procedures are the same as conventional manufacturer. refrigerant (R410A, R22) models. However, pay careful attention to the following points: Work Since the working pressure is higher than that of refrigerant R22 Prior to beginning work on systems containing flammable...
- Page 10 2 - Safety Prior to work taking place, the area around the equipment is to At all times the manufacturer’s maintenance and service be surveyed to make sure that there are no flammable hazards or guidelines shall be followed. ignition risks. If in doubt consult the manufacturer’s technical department for “No Smoking”...
- Page 11 2 - Safety Replace components only with parts specified by the This process may need to be repeated several times. manufacturer. Unspecified parts by manufacturer may result Compressed air or oxygen shall not be used for this task. ignition of refrigerant in the atmosphere from a leak. Flushing shall be achieved by breaking the vacuum in the system Cabling with OFN and continuing to fill until the working pressure is...
-
Page 12: Precaution For Using R32 Refrigerant
2 - Safety Prior to the task being carried out, an oil and refrigerant sample Recovery shall be taken in case analysis is required prior to re-use of When removing refrigerant from a system, either for servicing reclaimed refrigerant. or decommissioning, it is recommended good practice that all It is essential that electrical power is available before the task is refrigerants are removed safely. -
Page 13: Transport, Handling And Storage
3 - Transport, Handling and Storage 3.1 Inspection 3.4 Anchoring Floor mounting The unit shall be immediately inspected upon receipt to identify any damage, since it has been delivered ex works and transported at the For floor mounting application, use the support supplied loose with customer’s risk. -
Page 14: Installation
4 - Installation 4.1 Installation Site 4.2 Consideration for A2L refrigerant installation This product contains R32 refrigerant that has a minimal Before installing the unit, make sure that environmental impact, thanks to its low value of Global Warming the building structure and/or the supporting Potential (GWP). -
Page 15: Connection To The Outdoor Unit
4 - Installation Connection to the outdoor unit When connecting the refrigerant pipes to the outdoor unit consider to The water volume of the primary water circuit, shall never be lower than 10 lt/kW in terms of refrigerating capacity. In the event Ensure that the actual length of refrigerant piping between the of insufficient water volume, a buffer tank should be installed. - Page 16 4 - Installation When two or several units are connected in parallel, to balance the Single phase motor pump > 0,37 kW load losses of the various circuits, it is recommended to execute a “reverse return” connection (see the diagram below). UNIT 1 UNIT 2 Legend...
- Page 17 4 - Installation Water circuit - Basic configuration Water circuit - One tank-3 way valve configuration Water circuit - Two tanks-3 way valve configuration COMPONENTS SAFETY/CONTROL DEVICES 2 External pump Inlet water temperature sensor 8 Vent valve Outlet water temperature sensor 9 Water filter (supplied with WHE) Flow switch (supplied with WHE) 12 Flexible pipes...
-
Page 18: External Water Circuit
4 - Installation Drainage Flow switch The drain should allow water to run out naturally, so provide a downward slope of at least 1°. To ensure sufficient water flow through the evaporator, it is essential that a flow switch is installed on the water circuit. The purpose of the flow switch is to stop the unit in the event of interrupted water During cooling... -
Page 19: Power Supply
4 - Installation 4.7 Power supply Electrical connections The unit must be installed on site according to the usual procedures and standards applicable in the place of Before carrying out any operations on the installation. The unit must not be operated if its installation electrical system, make sure that the unit is has not been carried out according to the instructions deenergized. -
Page 20: Electrical Connections
4 - Installation WHE - Electrical Connections... -
Page 21: Start-Up
5 - Start-up made at the time of shipment. If the EPROM needs to be changed, set The unit must be started for the first time by the parameters following the next instruction: personnel suitably trained by one of Authorised Service Centre. -
Page 22: Test Run Procedure
5 - Start-up Test run procedure Check the combination (wiring) of indoor and outdoor units. Select the "Set data" by pressing the button. select one of the "Set data" by pressing the Is system “single-type”? (1 indoor unit is connected to 1 outdoor unit button. -
Page 23: Checking The Operation
5 - Start-up Press the button. "TEST" will be displayed on the LCD display. Press the button. Test run will be started. Test run setting mode screen appears on the LCD display. To finish the test operation. • The test operation can be performed in Heat or Cool mode. •... -
Page 24: Control
6 - Control 6.1 System Control Connect the indoor units (U1, U2) and the outdoor units (U1, U2). System control refers to the link wiring connection for control of Connect the other outdoor units and indoor units (with different simultaneous-operation multi systems, group control, and main-sub refrigerant systems) in the same way. - Page 25 6 - Control 1 and 2 go out. In other cases, correct settings referring to the System address System address following table and perform auto address setting again. System address No. 10s digit 1s place (2P DIP switch) (Rotary switch) Contents of LEDs 1 and 2 on outdoor unit control P .C.
- Page 26 6 - Control Checking the indoor unit addresses Remote controller setting mode (CZ-RTC5B) Use the remote controller to check the indoor unit address. CZ- Press and hold the buttons RTC5B (High-spec wired remote controller) simultaneously for 4 or more seconds. Keep pressing the buttons Press the...
-
Page 27: Circuit Board Controls And Connectors
Water Heat Exchanger Unit 5. Control system 6 - Control (2) Cicrcuit board controls and connettors 6.2 Circuit Board Controls and Connectors (3) Electrical box layout POWER RELAY CONTROL PCB HEAT/COLD SWITCH TERMINAL PLATE TERMINAL PLATE... -
Page 28: Whe Wiring Diagram
6 - Control WHE Wiring Diagram... -
Page 29: Product Description
7 - Product Description 7.2 Accessories 7.1 General Information Water Filter Kit - Part Code Number: PAW-01WFL The WHE units are intended to cool down and heat up the water required for air conditioning in residential and small commercial It is mandatory to install the supplied filter at the water inlet of the applications. - Page 30 7 - Product Description Flow Switch Kit - Part Code Number: PAW-01WFS Use the 1-1/4" paddle and completely screw the flow switch. It is mandatory to install the supplied flow switch kit at the outlet of Always assure that the flow switch is oriented the WHE with the arrow in the direction of the flow WARNING...
- Page 31 7 - Product Description Electrical connections Calibration Connect the flow switch as indicated in the figure below: The flow switch must be calibrated on site. It is Connect the common (1) free contact and the Normally Open (3) free delivered uncalibrated. The advised calibration contact and the Ground line to the terminal plate flow rate is shown in the table below.
-
Page 32: Circuit Diagram
7 - Product Description 7.3 Circuit diagram COMPONENTS SAFETY/CONTROL DEVICES 1 Plate heat exchanger Water differential pressure switch 2 Liquid receiver Inlet water temperature sensor 3 Strainers* Outlet water temperature sensor Refrigerant probe * Refrigerant strainers can Refrigerant probe work in both flow directions. Antifreeze probe Unit side ↓... -
Page 33: Technical Data
8 - Technical Data Hydraulic features WHE Evaporator Water Pressure Drop Q [m The Available pressure head, at the exit of the WHE, is calculated by: Available Head = Pump Static Pressure - WHE Total Pressure Drop The external water circuit must be dimensioned accordingly The WHE Total Pressure Drop is the sum of the evaporator pressure drop, filter pressure drop and flow switch pressure drop NOTE (refer to accessory chapter for information) -
Page 34: Physical Data
8 - Technical Data 8.3 Physical data WHE Units PAW-W5APAC Power supply V/ph/Hz 230V/1+N/50Hz Number of refrigerant circuits REFRIGERANT Type CAPACITY Nominal Cooling Capacity Nominal Heating Capacity EVAPORATOR Type Plate Number Water flow rate (cooling ΔT 5K) 3,45 4,30 Water flow rate (heating ΔT 5K) 4,15 4,85 Minimum flow rate... -
Page 35: Dimensional Drawings - Whe
8 - Technical Data 8.5 Dimensional Drawings - WHE CONTROLLER KEYPAD DISPLAY WATER INLET 1 1/4" Gas M WATER OUTLET 1 1/4" Gas M GAS PIPE 3/4" (BRAZED) LIQUID PIPE 1/2" (BRAZED) -
Page 36: Space Requirements
8 - Technical Data 8.6 Space Requirements (mm) min.1000 min.100... -
Page 37: Capacity Table
°C Temperature MODEL °C U-200PZH2E8 21,4 3,24 6,61 21,0 3,28 6,39 20,5 3,65 5,62 20,0 3,73 5,36 21,6 3,81 5,68 PAW-200W5APAC 22,4 3,17 7,06 22,0 3,21 6,83 21,5 3,59 6,00 21,0 3,66 5,73 22,6 3,74 6,04 U-250PZH2E8 27,8 4,41 6,31... -
Page 38: Performance Specifications
8 - Technical Data 8.8 Performance Specifications Heating Indoor Unit PAW-200W5APAC Outdoor Unit U-200PZH2E8 Item Symbol Value Unit Item Symbol Value Unit η Rated heat output Prated Seasonal space heating energy Design load for heating (Pdesign) efficiency Declared capacity for heating for part load at indoor Declared COP for part load at indoor temperature 20°C and outdoor temperature Tj... - Page 39 8 - Technical Data Heating Indoor Unit PAW-250W5APAC Outdoor Unit U-250PZH2E8 Item Symbol Value Unit Item Symbol Value Unit η Rated heat output Prated Seasonal space heating energy Design load for heating (Pdesign) efficiency Declared capacity for heating for part load at Declared COP for part load at LWT = 45°C and outdoor temperature Tj LWT = 45°C and outdoor temperature Tj...
-
Page 40: Performance Correction Factor Due To Equivalent Pipes Length And Height Of Installation
8 - Technical Data 8.9 Performance correction factor due to equivalent pipes length and height of installation U-200PZH2E8 (For 50 Hz) PAW-200W5APAC Cooling Heating Base capacity Base capacity change rate change rate Equivalent length (m) Equivalent length (m) U-250PZH2E8 (For 50 Hz) -
Page 41: Maintenance
9 - Maintenance 9.3 Evaporator Carefully read the “Safety” section of this manual before carrying out any maintenance operations. Check at regular intervals that the water side of the heat exchanger is perfectly clean. To do this, measure the pressure drop, water side Do not discharge the refrigerant into the (see Section 8) or measure the temperature of the liquid leaving atmosphere while the refrigeration circuits... -
Page 42: Spare Parts
10 - Spare Parts 10.1 Spare part list The table below shows the list of spare parts recommended during the first two years of operation. Component Part number Liquid Receiver 374404 Refrigerant filter 5/8" 371926 Refrigerant filter 1/2" 372673 Refrigerant Thermistor BT IN RF 374792 Refrigerant Thermistor BT OUT RF 374794... -
Page 43: Dismantling, Demolition, Scrapping
11 - Dismantling, Demolition and Scrapping disconnected and disassembled. During the draining of the refrigeration circuits, do not let the refrigerant overflow in Once they have been disconnected as specified, the packaged units the surrounding atmosphere. can be disassembled in a single piece. First of all, disassemble the anchoring screws and then lift the unit from the position of The circuit must be drained using suitable DANGER... - Page 44 Systemair srl Via XXV Aprile, 29 20825 Barlassina (MB) Italy Tel. +39 0362 680 1 Fax +39 0362 680 693 www.systemair.com As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos.
Need help?
Do you have a question about the PAW-200W5APAC and is the answer not in the manual?
Questions and answers