Installation and Maintenance Manual IM 447-11 Group: WSHP Part Number: 910153322 Date: April 2014 Legacy Console Water Source Heat Pumps 3/4 to 1½ Ton Unit Sizes 009-019 R-410A Models – For Replacement of McQuay Console Models: WAA, WAF, WAG, WAH, WAS, WAX, WCB, WCQ, WDA, WDB, WDC, WDD, WDE, WDF, WDG, WDH, WDJ, WDL ,WDN, WDS, WDU, WDX, WDY, WDZ, WFQ, WLA, WLB, WLC, WLL, WLZ, WMA, WMB, WMC, WMD, WME, WMF, WMG, WMH, WMJ, WMK, WML, WMM, WMN, WMO, WMP, WMQ, WMR, WMS, WMT, WMU, WMV, WMW, WMX, WMY, WMZ, WSQ, WS
Contents Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Multiple Unit Control Panel for Mark IV . . . . . . . . . . 20 Product Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Field Installed Outside Air Damper (Accessory) . . 21 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Manual Outside Air Damper . . . . . . . . . . . . . . . . . . . 21 Receiving and Storage . . . . . . . . . . . . . . . . . . . . . . . .
Model Nomenclature Nomenclature Note: Text displayed in Bold-Italics designate standard offering.
Product Identifiers Cabinet Subbase Height Previous Model Replacement Model Slope Top WAH, WDD, WDN WXH ● WDC, WDZ, WXG WXL ● Flat Top – WXM ● WAF, WAX, WDF, WDG, WDL, WDU, WDX, WXC, WXF, WXJ, WXQ, WZK, WZK WXN ● WAA, WDA, WXE WXP ● WAG, WAS, WDH, WDS, WDY, WZC, WZD, WZG, WZH, WST, WDS WXR ● Controls 1DDC Less Board Chassis Only2 ● ● ● ● ● ● ● ● High Sill Low Sill Mark IV ● ● ● ● ● ● ● WDE WXT ● ● ● WDB, WDJ, WXA, WXB, WZL WXV ● ● ● WCB, WLB, WMB, WMJ, WMW
Receiving and Storage Upon receipt of the equipment, check carton for visible damage. Make a notation on the shipper’s delivery ticket before signing. If there is any evidence of rough handling, the cartons should be opened at once to check for concealed damage. If any damage is found, notify the carrier within 48 hours to establish your claim, and request their inspection and a report. The Warranty Claims Department should then be contacted. Do not stand or transport the machines on end.
Unit Location 5. 1. Console water source heat pumps are designed to be installed in a controlled environment. 2. All units are to be installed against a wall. 3. Each unit should be located on the architectural plans. The supply, return, and condensation piping should be located accordingly, making sure the piping will fit into the confines of the subbase and cabinet. Note: If the floor and wall are not at right angles, it will be necessary to shim the subbase for proper installation.
Figure 2: Chassis (Left-hand slope top unit shown) Escutcheon Plate Control Diagram Air Coil Compressor/Control Box Access Cover Water Return W ater Supply All Pipe Fittings Are To Be Field Installed Junction Box Flexible Hoses Wiring Diagram Ball Valves Fan/Coil Section Access Panel Electric Conduit 9.0" (229mm) Condensate Line–14" (356mm) Clear Vinyl Hose Clamp 5.
Note: Table 3: 90 Degree Pipe Elbow Dimensions for Figure 3 All plumbing connections are made the same way whether or not the unit has valve packages. Whether or not you utilize our hose kits and shutoff/balancing valve all piping connections will have to conform with all local piping and building codes. The ability to remove the unit in order to perform repairs is imperative. Note: Valves, hoses and 90-degree elbows are factory available accessories, to be field-mounted by others.
Piping 1. All units are recommended to be connected to supply and return piping in a two-pipe reverse return configuration. A reverse return system is inherently self-balancing and requires only trim balancing where multiple quantities of units with different flow and pressure drop characteristics are connected to the same loop. A simple way to check for proper water balance is to take a differential temperature reading across the water connections when in the cooling mode.
Cleaning and Flushing System 1. Prior to first operation of any conditioner, the water circulating system must be cleaned and flushed of all construction dirt and debris. If the conditioners are equipped with water shutoff valves, either electric or pressure operated, the supply and return runouts must be connected together at each conditioner location. This will prevent the introduction of dirt into the unit. Additionally, pressure operated valves only open when the compressor is operating. 5.
Figure 7: Standard electrical connection - Junction box Control Box Escutcheon Plate Air Coil Compressor Cover Junction Box Electrical Conduit Floor Wiring Diagram 1.0"* (25mm) *1.0" (25mm) from inside surface of wall Fan Motor Cover 9.0" (229mm) 5.0" (127mm) Figure 8: Cord & plug connection (field-installed) Figure 9: Cabinet power connection (field-installed) Power Cord Receptacle, Fuses & Disconnect Switch (Requires plug cord on chassis.
Electrical Data Operating Limits Environment General This equipment is designed for indoor installation only. Sheltered locations such as attics, garages, etc., generally will not provide sufficient protection against extremes in temperature and/or humidity, and equipment performance, reliability, and service may be adversely affected. 1. Be sure the available power is the same voltage and volt operation unless specified for 230 volts. phase as that shown on the unit serial plate.
Unit Electrical Data Table Table 6: Unit Electrical Data Unit Size 009 012 015 019 Power Compressor Volt Hz Phase RLA LRA Motor FLA Total Unit FLA Min. Volts Min. Circuit Ampacity Max. Fuse Size 115 60 1 8.0 50 0.63 8.63 104 10.6 15 208/230 60 1 3.7 22 0.40 4.10 197 5.0 15 265 60 1 3.5 22 0.35 3.85 240 4.7 15 115 60 1 9.5 50 1.60 11.10 104 13.5 20 208/230 60 1 4.7 25 0.60 5.30 197 6.5 15 208/230 60 1 5.6 29 0.82 6.42 197 7.
Unit Operation – General Mark IV/AC-Control Units Note: At start-up of unit, ensure that temperature, flow rate and voltage are within specified limits required for proper unit operation. Each unit has its own control or remote control, utilizing an internal thermostat (unit mounted) and touch-pad selector switch or a wall mounted thermostat (remote control units). Each unit has a Mark IV/AC version printed circuit board. Its control is available in unit mounted or remote wall thermostat.
The Mark IV/AC control board has a lockout circuit to stop compressor operation if any one of its safeties opens (high pressure or low temperature). If the low temperature thermostat opens, the unit will go into the cooling mode for 60 seconds to defrost any slush in the water-to-refrigerant heat exchanger. After 60 seconds, the compressor is locked out. If the condensate sensor detects a filled drain pan, the compressor operation will be suspended only in the cooling mode.
Control Options on Mark IV/AC Units Figure 12: Auxiliary Relay WSHP Mark IV/AC Board Low Voltage Terminal Strip Note: Operation: In this example the auxiliary relay contacts can be used to indicate a fault condition. With the auxiliary relay connected as shown, the normally open contacts will close during a fault condition. The auxiliary relay is designed to interface external equipment with the Mark IV/AC board.
Thermostat Connection Diagrams Programmable Electronic Thermostat Two-Stage Heat/Two-Stage Cool, 7-Day Programmable Dimensions Specifications Specifications Electrical Rating: Electrical Rating: • 24 VAC (18 to 30 VAC/VDC) • 1 amp maximum per terminal • 4 amp maximum total load • Easy access terminal block 45°F to 90°F (7°C to 32°C), Accuracy: ± 1°F (± 0.
Optional Remote Sensor Optional Remote Sensor Installation (Used with Thermostats 668375301 & 668375401) 1. Remove cover from remote sensor housing. 2. Select an appropriate location for mounting the remote sensor. 3. Mount remote sensor unit using hardware provided. 4. Install two strand shielded wire between remote sensor and thermostat. Shielded wire must be used. Note: Do not run remote sensor wire in conduit with other wires.
Multiple Unit Control Panel for Mark IV The multiple unit control board is an accessory used when you need to control up to 3-units from a single thermostat. The board is typically mounted in the unit control box closest to the thermostat. A maximum of 2 boards may be used together if up to 6-units must be connected and controlled from a single thermostat. Low voltage wiring between terminal blocks and the Daikin wall thermostat should be made in conformancewith applicable codes.
Field Installed Outside Air Damper (Accessory) CAUTION To prevent infiltration of ambient conditions, it is the responsibility of the contractor to assure that factory installed gasketing matches up with the wall opening, or that additional material is used to assure a positive seal. Cold Weather Operation: Console water source heat pumps may experience erratic operation during cold ambient conditions with the outside air damper in the open position.
Motorized Outside Air Damper Wiring Figure 21: Right-hand unit installation detail Bushing, Strain Relief Wire Tie Screws (See Note 1) Housing Plug Snap Bushing Gasket (See Note 2) Housing Receptacle Front View of Unit Figure 22: Left-hand unit installation detail Bushing, Strain Relief Route wires along with power wires Chassis Screws (See Note 1) Wire Tie Gasket (See Note 2) Damper Assembly Housing Plug Subbase Housing Receptacle Front View of Unit Notes: 1.
Unit Operation Check List Connect supply power to the unit and confirm green LED illuminates on the Mark IV control board. Adjust all valves to their full open positions. Turn on the line power to all heat pumps. Note: Room temperature should be within the minimum-maximum ranges. During start-up checks, loop water temperature entering the heat pump should be between 55°F [13°C] and 90°F [32°C].
Compressor attempts to start but doesn’t: 1. Check capacitor. Water drips from conditioner: 1. Check for plugged condensate drain. 2. Check for defective compressor by making resistance check on winding. 2. Check for dirty filter. 3. Check run capacitor. 3. Check to see if condensate drain runs uphill. 4. See if blower motor is up to speed. 5. Check for loose or mispositioned blower. 6. Are drains properly trapped? Compressor runs in short cycle: 1. Check thermostat mounting and location.
Maintenance 1. 2. Filter changes are required at the regular intervals. The time period between changes will depend upon the project requirements. Some applications such as motels, produce a lot of lint from carpeting and linen changes, and will require more frequent filter changes. It is suggested that the filter be checked at 60 day intervals for the first year until experience is acquired. If light cannot be seen through the filter when held up to sunlight or a bright light, it should be changed.
Typical Wiring Diagrams Typical Mark IV/AC Component Layout 1 Compressor Contactor L1 2 Fan Contactor L2 Ground 3 Transformer 4 PC Board Compr Motor 5 Auxiliary Relay 6 Circuit Breaker Heater 070 - Blk 060 - Blk 048 - Red 042 - Blk 036 - Blk 030 - Blk Fan Motor CC - Compressor Contactor HTR - Crankcase Heater (Optional) CAP - Motor Capacitor CC Lo Temp Hi Pressure Condensate Sensor Lo Pressure Reversing Valve Solenoid (24 VAC) 0 WGW Y F E L U A P V R C 2 1 1 Compressor L1 Fan Common Ma
Typical Wiring Diagrams Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with Manual Changeover (MCO) TB ACO MCO BR HR - Plug Connection Terminal Block Automatic Changeover Manual Changeover Boilerless Relay Heater Relay Component Layout 1. Rotary Switch 2. Thermostat 3. Terminal Block 4. PC Board 5. Transformer 6. Boilerless Relay 7. Shutdown Relay 8. Auxiliary Relay 9. Heater Relay 10. Water Reg Valve Relay 11. Low Limit Thermostat 12. Night Setback Thermostat 14.
Typical Wiring Diagrams Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with Auto Changeover (ACO) TB ACO MCO BR HR - Plug Connection Terminal Block Automatic Changeover Manual Changeover Boilerless Relay Heater Relay Component Layout 1. Tap-Touch Switch 2. Thermostat 3. Terminal Block 4. PC Board 5. Transformer 6. Boilerless Relay 7. Shutdown Relay 8. Auxiliary Relay 9. Heater Relay 10. Water Reg Valve Relay 11. Low Limit Thermostat 12. Night Setback Thermostat 13.
Typical Wiring Diagrams Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with Auto Changeover (ACO) Remote Thermostat TB ACO MCO BR HR - Plug Connection Terminal Block Automatic Changeover Manual Changeover Boilerless Relay Heater Relay Component Layout 1. Tap-Touch Switch 2. Thermostat 3. Terminal Block 4. PC Board 5. Transformer 6. Boilerless Relay 7. Shutdown Relay 8. Auxiliary Relay 9. Heater Relay 10. Water Reg Valve Relay 11. Low Limit Thermostat 12.
Typical Wiring Diagrams Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with Manual Changeover (MCO) Boilerless Constant Fan TB ACO MCO BR HR - Plug Connection Terminal Block Automatic Changeover Manual Changeover Boilerless Relay Heater Relay Component Layout 1. Rotary Switch 2. Thermostat 3. Terminal Block 4. PC Board 5. Transformer 6. Boilerless Relay 7. Shutdown Relay 8. Auxiliary Relay 9. Heater Relay 10. Water Reg Valve Relay 11. Low Limit Thermostat 12.
Typical Wiring Diagrams Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with Auto Changeover (ACO) Boilerless with Remote Thermostat TB ACO MCO BR HR - Plug Connection Terminal Block Automatic Changeover Manual Changeover Boilerless Relay Heater Relay Component Layout 1. Tap-Touch Switch 2. Thermostat 3. Terminal Block 4. PC Board 5. Transformer 6. Boilerless Relay 7. Shutdown Relay 8. Auxiliary Relay 9. Heater Relay 10. Water Reg Valve Relay 11. Low Limit Thermostat 12.
Water Source Heat Pump Equipment Check, Test and Start Form This form must be completed and submitted within ten (10) days of start‑up to comply with the terms of the Daikin warranty. Forms should be returned to Daikin Warranty Department.
Unit Check / Equipment Data Installation Data Job Name____________________________________________________ Check Test Date:___________________________ City ___________________________________________________________ State________________ Zip_______________ Daikin Model #_______________________________________________________ Daikin Serial #________________________________________ Job site Unit ID # (HP #)______________________________ General Contractor:______________________________________ Mechanical C
Commercial Check, Test and Start Worksheet (Complete all equipment measurements indicated for each unit per installation on page 2) Model Serial # H.P. # EWT 3 LWT 4 EWP 1 LWP 2 EAT 5 LAT 6 Volts Amps Cooling Check Air Filter and Coil Comments (more comments on back) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. Part No.______________________________ IM 447-11 34 www.
Notes / Comments Form WS-CTS-00.01 (Rev. 4/14) www.DaikinApplied.
Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department. Warranty All Daikin equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty.
