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Console Water Source Heat Pumps R-410A Models MHC Standard Range & MHW Geothermal Range Flat Top & Slope Top – Unit Sizes 007 – 018

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Console Water Source Heat Pumps R-410A Models MHC Standard Range & MHW Geothermal Range Flat Top & Slope Top – Unit Sizes 007 – 018 Installation & Maintenance Data IM 985-2 Group: WSHP Part Number: 669479302 Date: November 2011 Console Water Source Heat Pumps R-410A Models MHC Standard Range & MHW Geothermal Range Flat Top & Slope Top – Unit Sizes 007 – 018 Slope Top Unit Flat Top Unit ® ©2011 McQuay International Contents Model Nomenclature ...........................................................3 Start-up ...............................................................................25 Receiving and Storage ........................................................4 Cooling or Heating – Manual Operation ........................25 Pre-Installation.....................................................................4 Additional Accessories .....................................................25 General ...........................................................................25 Unit Installation (Recommended) ......................................5 Alternate Unit Installation ..................................................7 Wall-Mounted Programmable Electronic Thermostat (Using Provided Brackets) ................................................7 (P/N 668811301) ............................................................... 25 Non-Programmable Electronic Thermostat ...................26 Piping ....................................................................................8 (P/N 668811201) .............................................................26 Water Connections ..............................................................9 Programmable Electronic Thermostat Cleaning & Flushing Water System ................................12 (P/N 668811101) .............................................................27 Non-Programmable Electronic Thermostat Electrical Connections ......................................................13 Standard Electrical Connection ......................................13 (P/N 668811001) .............................................................27 Electrical Data ....................................................................14 Wireless Temperature Control (T9000) ............................28 Operating Voltages .........................................................14 Remote Control Node (RCN) ..........................................28 Operating Limits..............................................................14 MicroTech III Wall-Mounted Room Additional Information .....................................................14 Temperature Sensors ........................................................29 General ...........................................................................29 MicroTech® III Unit Controller ..........................................15 I/O Expansion Module ....................................................15 Optional Remote Sensor ...................................................30 MicroTech III Unit Controller with LONWORKS® Motorized Isolation Valve & Relay ...................................30 Communication Module ....................................................16 Multiple Unit Control Panel (MUCP) for Use With MicroTech III Controller with BACnet MS/TP MicroTech® III Unit Controller ..........................................31 Communication Module ....................................................17 Outside Air Damper ...........................................................31 MicroTech® III Unit Controller Terminals Locations and Descriptions ....................................................................19 Troubleshooting ................................................................33 The in and outs of R-410A ..............................................33 Typical Wiring Diagrams ...................................................22 Lubrication ......................................................................33 MicroTech III Unit Controller for Sizes 007-015 – Charging .........................................................................33 208/230/60Hz/1-Phase ...................................................22 General Maintenance .....................................................33 MicroTech III Unit Controller With Electric Heat Troubleshooting Refrigeration Circuit .............................34 for Size 018 – 208/230/60Hz/1-Phase ............................23 Typical Cooling and Heating Refrigeration Cycles..........35 MicroTech III Unit Controller with Communication Troubleshooting the Water Source Heat Pump Unit .......36 Module and Wall-Mounted Room Temperature Sensor – Troubleshooting the MicroTech III ..................................37 265/277/60Hz/1-Phase ...................................................24 Unit Controller .................................................................37 Page 2 of 38 / IM 985-2 Model Nomenclature Note: For illustration purposes only. Not all options available with all models. Please consult McQuay Sales Representative for specific availability. W MHC 1 009 B E H B T 01 F2 Product Category Cabinet Type W = WSHP F = Flat Top S = Slope Top Product Identifier Discharge Grille MHC = Standard Range Console WSHP 2 = Standard Stamped MHW = Geothermal Range Console WSHP Louver Design Series 3 = Multi-Directional Grille 1 = A Design 2 = B Design Blower Motor 3 = C Design 01 = Standard 4 = D Design Nominal Capacity Discharge Air 007 = 7,000 BTU/h T = Top 009 = 9,000 BTU/h 012 = 12,000 BTU/h 015 = 15,000 BTU/h Return Air 018 = 18,000 BTU/h B = Bottom Return (High Sill) F = Front Return (Low Sill) Controls B = MicroTech III Unit Controller Cabinet Height H = High Sill C = MicroTech III Unit Controller w/LONWORKS Communication Module D = MicroTech III Unit Controller w/BACnet Communication Module L = Low Sill Voltage A = 115/60/1 E = 208-230/60/1 J = 265/60/1 WARNING This Installation and Maintenance bulletin is intended to provide the proper procedures for installing a McQuay Console Water Source Heat Pump. Failure to follow these procedures can cause property damage, severe personal injury or death. Additional, failure to follow these procedures can cause premature failure of this equipment or cause erratic unit operation, resulting in diminished unit performance. Disregarding these directions may further lead to suspension or revocation of the manufacturer's warranty. IM 985-2 / Page 3 of 38 Receiving and Storage Pre-Installation Upon receipt of the equipment, check carton for visible damage. Make a notation on the shipper’s delivery ticket WARNING before signing. If there is any evidence of rough handling, The installer must determine and follow all applicable immediately open the cartons to check for concealed damage. codes and regulations. This equipment presents hazards If any damage is found, notify the carrier within 48 hours to of electricity, rotating parts, sharp edges, heat and weight. establish your claim and request their inspection and a report. Failure to read and follow these instructions can result in The Warranty Claims Department should then be contacted. property damage, severe personal injury or death. This equipment must be installed by experienced, trained Do not stand or transport the machines on end. For storing, personnel only. each carton is marked with “up” arrows. In the event that elevator transfer makes up-ended position- 1. To prevent damage, do not operate this equipment ing unavoidable, do not operate the machine until it has been for supplementary heating and cooling during the in the normal upright position for at least 24 hours. construction period. Doing so will void the warranty. Temporary storage at the job site must be indoor, completely 2. Inspect the carton for any specific tagging numbers sheltered from rain, snow, etc. High or low temperatures indicated by the factory per a request from the installing naturally associated with weather patterns will not harm contractor. At this time the voltage, phase and capacity the units. Excessively high temperatures, 140°F (60°C) and should be checked against the plans. higher, may deteriorate certain plastic materials and cause 3. Check the unit size against the plans to verify that the unit permanent damage. is being installed in the correct location. 4. Before installation, check the available dimensions where IMPORTANT the unit be installed versus the dimensions of the unit. This product was carefully packed and thoroughly 5. Note the location and routing of water piping, condensate inspected before leaving the factory. Responsibility for its drain piping, and electrical wiring. The locations of these safe delivery was assumed by the carrier upon acceptance of the shipment. Claims for loss or damage sustained in items are clearly marked on submittal drawings. transit must therefore be made upon the carrier as follows: 6. The installing contractor will find it beneficial to confer VISIBLE LOSS OR DAMAGE with piping, sheet metal, and electrical foremen before Any external evidence of loss or damage must be noted installing any unit. on the freight bill or carrier’s receipt, and signed by the carrier’s agent. Failure to adequately describe such Note: Check the unit data plate for correct external evidence of loss or damage may result in the voltage with the plans before installing the carrier’s refusal to honor a damage claim. The form equipment. Also, make sure all electrical required to file such a claim will be supplied by the carrier. ground connections are made in accordance CONCEALED LOSS OR DAMAGE with local code. Concealed loss or damage means loss or damage which 7. The contractor shall cover the units
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