Related Manuals for Mitsubishi Electric PQFY
Summary of Contents for Mitsubishi Electric PQFY
-
Page 1: Installation Manual
Water Heating Unit PQFY FOR INSTALLERS INSTALLATION MANUAL For safe and correct use, please read this installation manual thoroughly before installing the PQFY unit. - Page 2 [Fig. 2.0.1] Thermistor Plastic clip Nylon clip Installation manual Insulation...
- Page 3 [Fig. 6.0.1] Water pipe Cooling/heating thermistor Aluminium tape (field supply) Insulation Tie band...
- Page 4 [Fig. 6.1.1] Outdoor unit Indoor fan coils Water pump Underfloor piping PQFY Water inlet pipe [Fig.6.1.2] Outdoor unit Water Pump Water Cylinder PQFY...
- Page 5 [Fig. 6.1.3] Outdoor unit Water pump Heat exchanger Water pump Pool water TH1H thermistor PQFY TH1H thermistor Return water pipe...
- Page 6 Printed circuit board Distand signal (ON/OFF) [Fig. 7.0.1] Operation Signal Error signal Relays M Net TH1H Liquid line thermistor (internal) Gas line thermistor (internal) LEV Control Power Transformer...
- Page 7 [Fig 7.1.1] Switch 16A Over current protection 16A Indoor unit Total operating current be less than 16A Pull box [Fig 7.2.1] [Fig 7.2.2] A A A Terminal block for AHU controller/indoor transmission cable Terminal block for outdoor transmission cable Remote controller [Fig 7.2.3] [Fig 7.2.4] Non-polarized...
-
Page 8: Table Of Contents
6.3. Setting the desired water temperatures ..........................12 6.3.1 Commissioning of Controller and Set point........................12 Electrical wiring ..................................13 7.2. Connecting remote controller, PQFY and outdoor transmission cables .................. 13 7.3. Connecting thermistor cable TH1 ............................14 8.3.1 Connecting thermistor cables............................14 7.4. -
Page 9: Precautions For Devices That Use R410A Refrigerant
Warning: As k the dealer or an authorised technician to install the unit. • - Improper installation by the user may result in water leakage, electric shock, or fire. Use the specified cables for wiring. Make the connections securely so that any outside forces acting on the cables are •... -
Page 10: Before Installation - Electrical Work
- Always wait at least five minutes before turning off the power. Otherwise, water leakage and other problems may occur. 2. Accessories The unit is provided with the following accessories: [Fig. 2.0.1] (P.1) Accessories PQFY-P140 PQFY-P250 Thermistor Plastic clip (1 spare) Nylon clip (2 spares) -
Page 11: Selecting An Installation Site
3. Selecting an installation site Avoid locations in direct sunlight. • Avoid locations exposed to steam or oil vapour. • Avoid locations where combustible gas may leak, settle or be generated. • Avoid installation near machines emitting high-frequency waves. • Avoid places where acidic solutions are frequently handled. -
Page 12: Thermistor Setting Work
Setting the desired return water temperature is performed on commissioning and is explained in section 7.3. • When the under floor heating requires heating, a volt free contact (closed / short circuit) is required on Terminal Block A1 and A2 on the PQFY •... -
Page 13: Heat Pump System With Any Combination Of Under Floor Heating, Under Floor Cooling And Domestic Hot Water
6.2.4 Heat Pump system with any combination of Under Floor Heating, Under Floor Cooling and Domestic Hot Water This application is possible but the system design and installation will vary per application. The additional controller ACH1 is required for this, please see the ACH1 installation manual for information. -
Page 14: Electrical Wiring
ME remote controllers connected. Connect PQFY controller TB5 and outdoor unit TB3. (Non-polarized 2-wire) • The "S" on PQFY controller TB5 is a shielding wire connection. For specifications about the connecting cables, refer to the outdoor unit • installation manual. -
Page 15: Connecting Thermistor Cable Th1
PUMY-P100/125/140YMH, PUMY-P100125140VMH, SW 6-6 to the ON position. All City Multi P200 and above, SW3-7 to the ON position. When connecting the PQFY to a heat pump with heating and cooling required it is necessary to use a PAR21 in auto mode (See commissioning •... -
Page 16: Setting The Pqfy Address
This is to ensure that sufficient capacity is available to heat the water. If other water heating or air heating fan coils are designed to run at the same time as the PQFY then the heat pump should be sized to cope with •... -
Page 17: Capacity Setting Of The Pqfy
System Index is 120. So long as the PQFY is never run at the same time as the fan coils the system will run with no problems. But if the fan coils run at the same time as the PQFY i.e. in heating, the total heating capacity of the system will be a little over 12kW. -
Page 18: Initial Setting And Test Run
After the installation work (which was performed in accordance with the outdoor unit installation manual and after the PQFY refrigerant • piping work, drain piping work, electrical wiring work, PQFY controller wiring work and switch setting), turn on the main power at least 12 hours before starting operation in accordance with the outdoor unit installation manual. -
Page 19: Commissioning
• A2 can be used to start the unit (if using an ACH1 the controller must be left on the system) With the remote controller, the PQFY will operate as requested just like a normal fan coil. • To use a volt free contact, first turn off the power to the indoor and outdoor, then remove the controller. Replace the orange plug and turn on the •... - Page 20 • Low Voltage Directive 73/23/EEC • Electromagnetic Compatibility Directive 89/336/EEC Please be sure to put the contact address/telephone number on this manual before handing it to the customer. MITSUBISHI ELECTRIC UK MITSUBISHI ELECTRIC UK, TRAVELLERS LANE, HATFIELD HERTFORDAHIRE, AL10 8XB.