Daikin SMARTSOURCE WSRC Installation & Maintenance Manual
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Daikin SMARTSOURCE WSRC Installation & Maintenance Manual

Daikin SMARTSOURCE WSRC Installation & Maintenance Manual

Console water source heat pump
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SMARTSOURCE
CONSOLE WATER SOURCE HEAT PUMP
• MODEL WSRC
• 1/2 TO 1-1/2 TONS
• R-32 REFRIGERANT
©2025 DAIKIN APPLIED | (800) 432.1342
INSTALLATION & MAINTENANCE MANUAL
®
LEARN MORE AT DAIKINAPPLIED.COM
IM 1377
FEBRUARY 2025

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  • Page 1 INSTALLATION & MAINTENANCE MANUAL IM 1377 FEBRUARY 2025 SMARTSOURCE ® CONSOLE WATER SOURCE HEAT PUMP • MODEL WSRC • 1/2 TO 1-1/2 TONS • R-32 REFRIGERANT LEARN MORE AT DAIKINAPPLIED.COM ©2025 DAIKIN APPLIED | (800) 432.1342...

  • Page 2: Table Of Contents

    Motorized Isolation Valve & Relay . . . . . . . . . . . . . . . 22 ©2025 Daikin Applied, Minneapolis, MN. All rights reserved throughout the world. This document contains the most current product information as of this printing.

  • Page 3: Safety Information

    Polyolester Oil, commonly known as POE oil is a synthetic oil used in many A means for disconnection must be incorporated in the fixed refrigeration systems, and may be present in this Daikin Applied product. POE wiring in accordance with the wiring rules for stationary...

  • Page 4: Ul Compliance Statements For Unit Work

    A degree of ventilation shall continue during present the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 5: Introduction

    INTRODUCTION Introduction Model Nomenclature 16-17 Category Code Code Description Option Product Category Water Source Heat Pump Model Type R-32, Wall Mounted Console Design Series (Vintage) Design Series 1 Nominal Capacity 7,000 Btu/h Nominal Cooling 9,000 Btu/h Nominal Cooling 12,000 Btu/h Nominal Cooling 15,000 Btu/h Nominal Cooling 18,000 Btu/h Nominal Cooling Controls...
  • Page 6 Supply, Return, and Bypass Hand Valves; Air Vent; Auto Flow Valve Supply, Return and Bypass Valves; Air Vent 2-Way Motorized Isolation Valve, High Close-Off Pressure N.C. (Normally Closed); Supply, Return, and Bypass Hand Valves; Air Vent None DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 7 INTRODUCTION 16-17 Category Code Code Description Option Color Antique Ivory Cabinet with Oxford Brown Grille and Subbase Antique Ivory Cabinet and Grille with Oxford Brown Subbase Antique Ivory Cabinet, Grille and Subbase Cupola White Cabinet with Oxford Brown Grille and Subbase Available with Stamped Cupola White Cabinet and Grille with Oxford Brown...

  • Page 8: Installation

    Heat- Cooling Heat- agent within five (5) days of the delivery date and file a claim with the (DB/WB) (DB/WB) form provided by Daikin Applied. Refer to the Daikin Applied Freight Policy for Minimum 50°F 40°F 50°F (10°C) 40°F (4°C) further information.

  • Page 9: Pre-Installation

    INSTALLATION Table 2: Fluid Limits Table 3: Antifreeze Percentage by Volume Fluid Limits Standard Range Extended Range Type Minimum Temperature for Units (Geothermal) Units Low Temperature Protection Cooling Heating Cooling Heating 10°F 15°F 20°F 25°F (-12 .2°C) (-9 .4°C) (-6 .7°C) (-3 .9°C) Minimum 55°F...

  • Page 10: Unit Installation (Recommended)

    90 degrees to the wall as shown in Figure NOTICE Daikin Applied recommends the placement of a sound absorbing mat Use the appropriate fasteners in accordance with local building codes. beneath the unit footprint before continuing to the next installation step.
  • Page 11 INSTALLATION Figure 1: Cabinet Panel Screw Locations and Panel Removal Control Door Blockoff Plate Left Corner Panel Front Panel Right Corner Panel Subbase Figure 2: Unit Mounting Details WWW.DAIKINAPPLIED.COM IM 1377...

  • Page 12: Alternate Unit Installation

    Figure 2 on page NOTICE Daikin Applied recommends the placement of a sound absorbing mat It is preferred that the brackets are screwed directly into a stud where available. beneath the unit footprint before continuing to the next installation step.

  • Page 13: Installation With Optional Cabinet Rear Extension

    Figure 2 on page 2 . Remove screw (2a) and remove right end panel (2b). Daikin Applied recommends the placement of a sound absorbing mat 3 . Remove screw (3a) and (3b) and remove center-front panel beneath the unit footprint before continuing to the next installation step.
  • Page 14 6 .1 21 .94 13 .91 5 .91 Standard Unit 47 .9 015, 018 With Extd. End Pocket 59 .9 NOTE: Right-hand (slope-top) unit shown, dimensions are mirrored for left-hand units and flat-top units. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 15: Water Piping

    Polyolester Oil, commonly known as POE oil is a synthetic oil used in many Each unit is supplied with an internal clear vinyl condensate refrigeration systems, and may be present in this Daikin Applied product. POE hose. oil, if ever in contact with PVC/CPVC, will coat the inside wall of PVC/CPVC 8 .

  • Page 16: Water Connections

    Table 6: Dimensions (High Sill Units) Unit Size 007-018 6⅞" (175 mm) 51/5" (132 mm) 6¾" (172 mm) 3½" (90 mm) 10¼" (260 mm) 13/5" (41 mm) 5¼" (134 mm) 7½" (192 mm) DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 17 NOTE 2: On left-hand piping units, the water supply connection is on the top. On NOTICE right hand piping units, the water supply is located at the bottom. Daikin Applied offers a wide variety of piping packages. Consult your local NOTE 3: Gray tinted areas are field-installed (not included). sales rep for more information.

  • Page 18: Condensate Hose Connection

    This will prevent the introduction of dirt into the unit. See Figure 12 . NOTICE Pressure operated valves only open when the compressor is operating. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 19 Mains NOTICE It is Daikin Applied policy not to make recommendations on water treatment. It is the responsibility of the user to check that the water supply to the units is Flexible free of contaminants or corrosive agents, chemicals or minerals. The general...

  • Page 20: Field Installed Accessories

    This version of the board uses VAC relays and should not be used in combination with any other accessories or equipment that require VDC connections to the “G”, “W1”, or “Y1” terminals (i.e. Boilerless System Kit). DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 21: Outside Air Damper

    fIELD INSTALLED ACCESSORIES Outside Air Damper Cold Weather Operation Console water source heat pumps may experience erratic Field-Installed Option operation during cold ambient conditions with the outside air damper in the open position. See “Operating Limits” on page CAUTION 8, for guidelines. 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.

  • Page 22: Motorized Isolation Valve & Relay

    For detailed installation instructions for the motorized valve, refer to IM 1151. Figure 15: Normally Opened, Power Closed Motorized Valve Actuator & Valve Anti-short Bushing Anti-short Assembly Bushing Conduit Connector Connector Pin(s), female connect to terminal H6 DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 23 Figure 17: MT2300 wiring to an existing motorized valve from a previously installed unit with MicroTech III controller NOTE: If reusing a motorized valve on an existing Daikin Applied R-410A unit, the wiring harness for connections 1, 2, and 3 for the R32 product are different.

  • Page 24: Electrical

    Wiring coming through the wall should be sealed to stop cold mode when return air temperatures below 54°F (12°C) are air infiltration through the wall cavity which could affect unit measured. thermostat operation. Remove the junction box cover, selecting DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 25: Low Voltage Wire Connections

    ELECTRICAL Night Set Back Switch Electrical Data During unoccupied mode, pressing the Night Set Back Switch 1 . Be sure the available power is the same voltage and phase for four to nine (4 to 9) seconds will cause the unit to operate as as that shown on the unit serial plate.

  • Page 26: Typical Wiring Diagrams

    ELECTRICAL Typical Wiring Diagrams Figure 21: 208-230/60/1 Without Electric Heat DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 27 ELECTRICAL Figure 22: MicroTech Unit Control Without Electric Heat - 208-230/60/1 WWW.DAIKINAPPLIED.COM IM 1377...
  • Page 28 ELECTRICAL Figure 23: 208-230/60/1 Ph with Electric Heat DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 29 ELECTRICAL Figure 24: MicroTech Unit Control with Electric Heat - 208-230/60/1 WWW.DAIKINAPPLIED.COM IM 1377...
  • Page 30 ELECTRICAL Figure 25: 265/60/1 with Wall Mounted Room Temperature Sensor DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 31 ELECTRICAL Figure 26: MicroTech Unit Control with Wall Mounted Room Temperature Sensor - 265/60/1 WWW.DAIKINAPPLIED.COM IM 1377...
  • Page 32 Terminal Strip - EG2UPC Low Limit Switch Unit Mounted Thermostat W1-^ Low Pressure Switch 1 Wire Compressor Suction Line Temperature Sensor 1 WN1-^ Wire Nut NOTE: Devices in legend may or may not be on unit. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 33: Typical Connections For Thermostats

    ELECTRICAL Typical Connections for Figure 29: Example Wiring of SmartSource MicroTech Board to Basic Temperature Sensor Wiring Thermostats & Temperature MicroTech Controller Terminals TB2 Sensors Applications Figure 27: Wiring Example of Typical Heat/Cool Thermostat Connections Basic Room Sensor with Cool to Warm Adjustment Figure 30: Room Sensor with Temperature Adjustment Wiring...

  • Page 34: Operation

    □ Check the elevation and cleanliness of the condensate line. If the air is too dry for sufficient dehumidification, slowly pour enough water into the condensate pan to ensure proper drainage. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 35: Controls

    OPERATION □ If the unit does not operate, check the following points: Connector Type Signal Description — Is supply voltage to the machine compatible? TB2-1 Output 5 VDC Room Sensor LED — Is thermostat type appropriate? TB2-2 Input Analog Room Sensor Fan/Mode TB2-3 Input Analog...
  • Page 36 Y1 G G LED FM FM SP SP RM RM GND PWM WSE WSE GND GND HGR HGR GND AUX1 AUX1 GND GND AUX2 AUX2 GND GND RV2 RV2 GND GND COMP2 COMP2 GND DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 37: Configuration Dip Switches

    OPERATION Configuration DIP Switches Switch Description Position Model/Options Thermostat/ SW6 = OFF (0) Thermostat Control Room Sensor WARNING SW6 = ON (1) Room Sensor Control Control Proper antifreeze/water solution is required to minimize the potential of fluid Allow Compressor in Heating Single Com- SW7 = OFF (0) freeze-up.

  • Page 38: Microtech Smartsource Unit Controller

    6 Flash Fault Compressor #2 Low Pressure The MicroTech SmartSource unit controller allows thermostat, Daikin Applied sensor and DDC standalone operation. The R Compressor #2 Suction Temp Sensor 7 Flash Fault (24VAC) terminal is used to operate thermostat inputs G, Y1, Y2, Fail W1, W2, W3, W4 and TB1.
  • Page 39 OPERATION LED Activity Type Color Description Alarm Enumeration Fault Indication Reset 5 Flash Mode Green Unoccupied Mode Active (BACnet) 6 Flash Mode Green Call for Dehumidification Comp #1 Low Pres- Compressor #1 low pres- sure sure switch opened 7 Flash Mode Green Low Entering Water Temp...

  • Page 40: Mt2300 Controller With An Optional Bacnet

    Refer to IM 956 for details to install RAT & DAT sensors. Unit Controller BACnet Protocol Information Daikin Applied water source heat pumps are available with an The communication module provides access to setpoints for optional BACnet MS/TP communication module that is designed operational control.

  • Page 41: Maintenance

    All Daikin Applied water source heat pumps are 5 . Periodic lockouts almost always are caused by air or water designed for commercial use. The units are designed for the cooling mode problems.

  • Page 42: Troubleshooting

    • Check wiring - loose or broken and check for bad connection. • High or Low pressure lockout: a . Cool mode, check water flow. b . Heating mode, check air flow. c. Check reversing valve for proper valve position. DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 43: Refrigerant Information

    REfRIgERANT INfORMATION Refrigerant Information Maintaining and servicing R-32 refrigerant should only be performed as recommended by this manual and by personnel licensed or certified in their jurisdiction to handle A2L refrigerants. Dismantling the unit and treatment of the refrigerant, oil, and Refrigerant Guidelines additional parts must be done in accordance with the relevant local, state, and national regulations.

  • Page 44: Leak Detection

    Ensure that the detector is • For equipment containing flammable refrigerants, not a potential source of ignition and is suitable for the refrigerants purging shall be achieved by breaking the DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...

  • Page 45: Handling And Storage

    REfRIgERANT INfORMATION vacuum in the system with oxygen-free nitrogen and commissioning. A follow up leak test shall be carried out continuing to fill until the working pressure is achieved, prior to leaving the site. then venting to atmosphere, and finally pulling down to a Decommissioning vacuum.

  • Page 46: Typical Refrigeration Cycles

    — Must be specially treated adhering to official regulations — Incineration in an adequate incinerator is recommended — Uncleaned packaging disposal must be made according to official regulations • Ensure sufficient ventilation at the working place DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP...
  • Page 47 REfRIgERANT INfORMATION Figure 36: Cooling Mode Return Air Thermal Co-Axial or Brazed Expansion Valve Plate Heat Exchanger Coil - Air to Water In Refrigerant Water Out Heat Exchanger Sensing Bulb and Capillary Tube Compressor Blower Reversing Valve Conditioned Air - (Cooling) Figure 37: Heating Mode Return Air Thermal...

  • Page 48: Appendix

    Note: “No” answers below require notice to installer by memorandum (attached copy.) □ □ Outdoor Air to Heat Pumps: ________________________________________________________________ □ □ Other Conditions Found: ___________________________________________________________________ _______________________________________________________________________________________ Please include any suggestions or comments for Daikin Applied: ___________________________________________________ ______________________________________________________________________________________________________ ______________________________________________________________________________________________________ ______________________________________________________________________________________________________ Above System is in Proper Working Order For Internal Use Note: This form must be retained.

  • Page 49: Equipment Data

    Job Name ___________________________________________________ Check Test Date: __________________________ City __________________________________________________________ State _______________ Zip ______________ Daikin Model # _______________________________________________ Daikin Serial # ________________________________ Job site Unit ID # (HP #) __________________________ General Contractor: ______________________________ Mechanical Contractor: __________________________ Technician Performing Start-Up: Name _______________________ Employer: __________________________ Complete equipment data from measurements taken at the locatons indicated on the drawing below.

  • Page 50: Commercial Check, Test And Start Worksheet

    (Complete all equipment measurements indicated for each unit per installation on page 2) Check Amps Comments Model Serial # H.P. # Volts Air Filter Cooling and Coil (more comments on back) DAIKIN APPLIED CONSOLE WATER SOURCE HEAT PUMP Form 5F-4239 (Rev. 02/2025)

  • Page 51: Limited Product Warranty

    (collectively “Owner”) that, subject to the exclusions set forth below Company, at its option, will repair or replace defective parts in the event any product manufactured by Company, including products sold under the brand name Daikin and used in the United States or Canada, proves defective in material or workmanship within twelve (12) months from initial startup or eighteen (18) months from the date shipped by Company, whichever occurs first.
  • Page 52 1 - 8 0 0 - 4 3 2 - 1 3 4 2 | 7 6 3 - 5 5 3 - 5 3 3 0 LEARN MORE AT DAIKINAPPLIED.COM PART NUMBER: IM1377 © 2025 DAIKIN APPLIED | (800) 432.1342 | WWW.DAIKINAPPLIED.COM...

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