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GE NAM V2 Series Installation Instructions Manual
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GE NAM V2 Series Installation Instructions Manual

GE NAM V2 Series Installation Instructions Manual

Multi-position air handler
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INSTALLATION INSTRUCTIONS
NAM*V2*5S
This manual must be left with the homeowner for future reference
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
NOTICE
A thermostat is not included and must be ordered
separately.
In all cases, setup is critical to ensure proper system
operation.
WARNING
only be carried out by competent persons. This appliance
is not to be used by persons (including children) with
reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have
been given supervision or instruction concerning use of
the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not
play with the appliance.
Contact GE Appliances at:
Homeowner:
www.geappliances.com
HVAC Pro:
www.geappliancesairandwater.com
866-814-3633
Split System USAC and USHP matches:
www.AHRIDirectory.org
GE Appliances
A Haier Company
Appliance Park
Louisville, KY 40225
508446G01 / 31-5000954
Multi-Position Air Handler

Table of Contents

General Information .......................................................3
Shipping and Packing List .............................................3
Field Control Wiring .......................................................4
Target CFM Tables ......................................................15
Requirements ..............................................................17
sions Inches (mm) ........................................................19
Installation Clearances ................................................20
Installing the Unit .........................................................20
Sensor / Bracket Installation.........................................30
Brazing Connections ...................................................32
Installing the Condensate Drain ..................................34
Condensate Drain.........................................................35
Sealing the Unit ...........................................................36
Unit Operating Sequences ..........................................37
Cooling Operation ........................................................43
Error Code / Recall Mode ............................................44
Indoor Blower Test .......................................................45
Operation .....................................................................45
Homeowner Maintenance ............................................46
Professional Maintenance ...........................................46
Sensor Maintenance ....................................................47
Decommissioning ........................................................49
NOTE - This unit is a PARTIAL UNIT AIR CONDITIONER,
complying with PARTIAL UNIT requirements of this
Standard, and must only be connected to other units
PARTIAL UNIT requirements of this Standard, UL 60335-
2-40/CSA C22.2 No. 60335-2-40, or UL 1995/CSA C22.2
No 236. Partial units shall only be connected to an
appliance suitable for the same refrigerant.
or
Maximum Altitude of application is 10,500 ft. (3,200 m)
above sea level.
The installation guidelines in this document are based on
UL60335-2-40 Edition 4. For information on installation
consistent with UL 60335-2-40 Edition 3, please refer to
www.geappliancesairandwater.com
Issue 2425
WARNING
(P) 508446G01
Page 1 of 51
R454B
...18

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Summary of Contents for GE NAM V2 Series

  • Page 1: Table Of Contents

    PARTIAL UNIT requirements of this Standard, UL 60335- 2-40/CSA C22.2 No. 60335-2-40, or UL 1995/CSA C22.2 No 236. Partial units shall only be connected to an Contact GE Appliances at: appliance suitable for the same refrigerant. Homeowner: www.geappliances.com...
  • Page 2 IMPORTANT: Special procedures are required for WARNING cleaning the all-aluminum coil in this unit. See page 46 in this instruction for information. Ducts connected to an appliance shall not contain a potential ignition source CAUTION Leak Detection System installed. Unit must be powered WARNING except for service.

  • Page 3: General Information

    General Information Shipping and Packing List Package 1 of 1 contains: This indoor unit with all-aluminum coil is designed for 1 - Assembled air handler unit a matched outdoor unit that is charged with R454B re- 1 - Pipe nipple (Sch80, 3/4" I.D. x 5") frigerant.

  • Page 4: Field Control Wiring

    Electrical wiring, disconnect means and over-current pro- Field Control Wiring tection are to be supplied by the installer. Refer to the air handler rating plate for maximum over-current protection, WARNING minimum circuit ampacity, as well as operating voltage. Select the proper supply circuit conductors in accordance Electric Shock Hazard.
  • Page 5 The power supply must be sized and protected according WARNING Electrically ground air handler. Connect phase, 60 cycles. For 208-volt applications, see “208 Volt ground wire to ground terminal marked Conversion” and Figure 1. “GND”. This unit is provided with holes for conduit. Use provided Failure to do so can result in death or caps to seal holes not used.
  • Page 6 RECOMMENDED BLOWER SPEED TAP SELECTION SPEED TAP SELECTION COOL HEAT DESCRIPTION HEAT CONDENS- HEAT CONDENS- COMPONENT PUMP WITH ING UNIT PUMP ING UNIT WITH CONTROL-INTEGRATED ELECTRIC ELECTRIC MOTOR-BLOWER HEAT HEAT ONLY JACK-MOTOR,VARIABLE SPEED JACK-MOTOR,VARIABLE SPEED 4 MINUS PIN #2 PIN #2 4 MINUS PLUG-ELECTRIC HEAT PLUG-MOTOR,VARIABLE SPEED...
  • Page 7 Discharge Air Sensor (Optional) DETAIL A THE AIR HANDLER CONTROL (AHC) HAS TWO SCREW TERMINALS MARKED OPERATION, IS FIELD-MOUNTED AND MUST BE ORDERED SEPARATELY NOTE - Due to varying duct designs (CATALOG # 88K38). and air flow conditions, relocation of the discharge sensor may be required to insure accurate sensing.
  • Page 8 OPTIONAL N.C. CONDENSATE FLOAT SWITCH AIR HANDLER CONTROL COMES FROM FACTORY WITH A CONDITIONER METAL JUMPER BETWEEN W1 TO W2 AND W2 TO W3. SEE UNIT FIGURE 21 FOR HEAT SECTION CONFIGURATION. (TWO-STAGE) AIR HANDLER DO NOT CONNECT A CONDENSATE FLOAT SWITCH TO THE "FLOAT SW" CONTROL TERMINAL WHEN A NON-COMMUNICATING THERMOSTAT IS USED YELLOW...

  • Page 9: Air Handler Control Button, Display And Jumpers

    • If jumper is installed in AUTO Air Handler Control Button, Display and tion, H terminal is energized whenever indoor blow- Jumpers er is running. 2 - Blower Only CFM - Used to select Indoor blower the referenced jumpers are missing, the Air Handler Con- CFM for continuous operation.
  • Page 10 A - When cooling demand is initiated, motor ramps up Cooling - Air Conditioner and Heat Pump to 82%. B - Motor runs at 82% for approximately 7.5 minutes and then ramps up to 100% (unless the demand 100% CFM 100% CFM COOLING 45 SEC.
  • Page 11 TABLE 2 NOTE — AHC MUST BE IN IDLE MODE) Single Character LED Action Display Solid Push and hold button until solid appears, release button. Solid Press and hold Solid “-” until required symbol displays CONFIGURING ELECTRIC HEAT SECTIONS – AHC will automatically configure electric heat when 240V power is applied. Air Handler Control has been enhanced to automatically configure electric heat when the electric heat harness in connected to the air handler and 240 volt power is applied.
  • Page 12 TABLE 3. AHC Single Character Display Alert Codes Alert Alert How to Clear Priority Code This alarm/code may indicate transformer overloading. Check the voltage and line There is a frequency/distortion problem power frequency. Check the generator operating frequency, if the system is running on Critical with the power to the air-handler.
  • Page 13 TABLE 3. AHC Single Character Display Alert Codes (cont'd) Lost communication with indoor blower motor. Possible causes include power outage, The system has lost communication brown-out, motor not powered, loose wiring, condensation on air handler control with- Critical with the air-handler indoor blower motor. out cover on breaker.
  • Page 14 TABLE 4. AHC Single Character Display Alert Codes (cont'd) Alert Alert How to Clear Priority Code The O relay on the air-handler has failed. O relay failed. Pilot relay contacts did not close or the relay coil did not energize. Re- Either the pilot relay contacts did not Critical place control.

  • Page 15: Target Cfm Tables

    Target CFM Tables BLOWER DATA -024 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Jumper Speed Positions “ADJUST” “HEAT” Speed “COOL” Speed Jumper Setting 1050 1050 NORM First stage cooling air volume is 70% of COOL speed setting. Continuous fan speed is approximately 28%, 38%, 70% and 100% (Jumper selectable) of the same second-stage COOL speed selected, minimum 250 cfm.
  • Page 16 Target CFM Tables (cont'd) BLOWER DATA -042 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range “ADJUST” Jumper Speed Positions Jumper “HEAT” Speed “COOL” Speed Setting 1100 1320 1540 1760 1100 1320 1540 1760 NORM 1000 1200 1400 1600 1000 1200...

  • Page 17: Requirements

    NOTES - of GE air handler units (with or without optional electric During cooling operation, excessive sweating may occur heat), MUST conform with National Fire Protection Asso- if the air handler is installed in a warm and humid space.
  • Page 18 PIPING PLATE DETAIL 3/4 (19) (FOR UP-FLOW AND DOWN-FLOW POSITIONS) 5/8 (16) SUPPLY AIR OPENING 4‐3/8 (111) 1‐1/8 (29) SUCTION LINE CONDENSATE DRAINS 5/8 (16) 5/8 (16) (2) (HORIZONTAL) 3/4 (19) Return Air Opening (51) LIQUID LINE 11‐1/16 (281) CONDENSATE DRAINS (2) (UP-FLOW AND 5‐3/8 DOWN-FLOW)

  • Page 19: Horizontal Left- And Right-Hand Discharge Unit Dimensions Inches (Mm)

    Horizontal Left- and Right-Hand Discharge Unit Dimensions Inches (mm) 5‐3/8 FILTER (137) (51) LIQUID Horizontal Position LINE (Right‐Hand Air SUCTION CONDENSATE LINE Discharge) DRAINS (2) (UP-FLOW Coil BLOWER 1‐1/8 DOWN-FLOW) (29) CONDENSATE 4‐3/8 DRAINS (2) (HORIZONTAL) (111) FOR DIMENSIONS “A” THROUGH “H”, SEE CHART ON PAGE 2.

  • Page 20: Installation Clearances

    Installing the Unit CAUTION As with any mechanical equipment, contact with sharp WARNING sheet metal edges can result in personal injury. Take care while handling this equipment and wear gloves and To prevent serious injury or death: protective clothing. 1. Lock-out/tag-out before performing maintenance. 2.
  • Page 21 • Pipe-work including piping material, pipe routing, and ceptable for all refrigerant systems. Electronic leak installation shall include protection from physical dam- detectors may be used to detect refrigerant leaks but, in age in operation and service, and be in compliance with national and local codes and standards not be adequate, or may need re-calibration.

  • Page 22: Upflow Application

    5 - Install units that have no return air plenum on a proper air return. GE UP-FLOW / DOWN-FLOW HORIZONTAL DRIP SHIELD (-060 MODELS) DRAIN PAN stand as listed in table 5.
  • Page 23 IMPORTANT 1/2" SCREWS MAXIMUM ELECTRICAL INLET CLEARANCE 4" (102 mm) ANGLE IRON OR When removing the coil, there is possible danger of SHEET METAL equipment damage and personal injury. Be careful when removing the coil assembly from a unit installed in right- or left-hand applications.

  • Page 24: Downflow Application

    NOTE - Be very careful when reinstalling the screws into NOTE - (-060 Model Only) Remove access panels and the coil end plate engaging holes. Misaligned screws may damage the coil. tween the blower and coil assembly. 1 - Remove the coil assembly from the unit. left and set into place.
  • Page 25 IMPORTANT steps below for proper installation. These must be place. DRIP SHIELD 2” WIDE FOAM TAPE SIDE VIEW 1/4". screws are required at back. 1” WIDE FOAM TAPE (LONGER PIECE) FIGURE 12. Applying Foam Tape to Drip Shield Before proceeding with step 4, please make sure are leveled.

  • Page 26: Sensor Connections And Wiring Requirements

    UNIT The following are sensor connections and wiring require- ments for the discharge air and outdoor air sensors. Outdoor Air Sensor This is a two screw terminal for connection to a GE COMBUSTIBLE FLOOR ADDITIVE BASE PROPERLY SIZED action on the sensor status other than to communicate FLOOR OPENING the temperature to the RSBus network.
  • Page 27 NOTE - TABLE 7. Electric Heat Connection (P8) Position Function / Description Heat stage 1 relay coil Heat stage 2 relay coil Relay coil return Heat stage 3 relay coil Heat stage 4 relay coil Heat stage 5 relay coil L1 230VAC supply from heater kit L2 230VAC supply from heater kit Not used...
  • Page 28 TABLE 9. Air Handler Control Connections Function Indoor Control Non-Communicating Indoor Communicating Terminal Label Room Thermostat Outdoor Non-Communicating (Indoor and Outdoor -24 volts) Indicates a first-stage heating demand. W1 (Input) This input is an anticipator for the ther- mostat. Indicates a second-stage heating de- mand.
  • Page 29 Page 29 of 51 Issue 2425 508446G01 / 31-5000954...

  • Page 30: Sensor / Bracket Installation

    5 - Loop any excess wire through the plastic “M” wire Sensor / Bracket Installation clip located on the inside of the center support bracket Leak detection sensor and bracket are factory-installed for 1 - Remove sensor bracket assembly from vertical vertical installation.
  • Page 31 FIGURE 22 (Detail) 4 - Loop and bundle any excess sensor wire with a wire tie. FIGURE 22 Page 31 of 51 Issue 2425 508446G01 / 31-5000954...

  • Page 32: Brazing Connections

    Brazing Connections WARNING Danger of explosion! IMPORTANT Can cause equipment damage, injury, or death. (latest edition). When using a high pressure gas such as nitrogen to pressurize a refrigeration or air conditioning system, use a regulator that can cian in accordance with established procedures. control the pressure down to 1 or 2 psig (6.9 IMPORTANT to 13.8 kPa).
  • Page 33 PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING USE A WET RAG TO PROTECT CTXV SENSING BULB WHEN BRAZING SUCTION LINE CONNECTIONS. NOTE — REFER TO OUTDOOR UNIT INSTALLATION INSTRUCTIONS FOR REFRIGERANT PIPING SIZE REQUIREMENTS NOTE - Use silver alloy brazing rods with five or six percent minimum silver alloy for copper-to-copper brazing, 45 percent alloy for copper-to-brass and copper-to-steel brazing.

  • Page 34: Installing The Condensate Drain

    Installing the Condensate Drain NOTE - When installing refrigerant lines longer than 50 IMPORTANT feet, see the GE Refrigerant Piping Design and Fabrica- tion Guidelines, or contact GE Technical Support Product After removal of drain pan plug(s), check drain hole(s) Applications for assistance.

  • Page 35: Condensate Drain

    METERS) GE P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J-TRAP 91P90. PIPE NIPPLE PROVIDED IN BAG ASSEMBLY - SCH 80, 3/4” I. D. X 5” - 34K7401 (1): CUT THE PIPE IN HALF AND USE IT TO ROUTE THE MA IN DRAIN.

  • Page 36: Install Condensate Drain

    INSTALL CONDENSATE DRAIN NOTE - Check local codes before connecting the drain line to an existing drainage system. Insulate the drain The air handler is provided with 3/4" NPT condensate lines where sweating could cause water damage. drain connections. TEST CONDENSATE DRAIN IMPORTANT Test the drain pan and drain line after installation: 1 - Pour several quarts of water into drain pan.

  • Page 37: Unit Operating Sequences

    be used to seal around the main and auxiliary drains, and around open areas of electrical inlets. Unit Operating Sequences This section details unit operating sequence for non-communicating systems. TABLE 12. NAM*V2*5S with Single-Stage Outdoor Unit Operating Sequence Operating Sequence System Demand System Response Thermostat Demand...
  • Page 38 TABLE 13. NAM*V2*5S with Two-Stage Outdoor Unit Operating Sequence Operating Sequence System Demand System Response Thermostat Demand Relative Humidity Handler System Compre Status Condition ssor (COOL) Step Comments No Call for Dehumidification Normal Operation Acceptable 24 VAC - Y1 Compressor and indoor air handler follow thermostat Normal Operation demand...
  • Page 39 Unit Operating Sequences (cont'd) Air Handler Control Checkout Power-up - Unit Size Code (Number or letter) displayed represents air handler model size and capacity. If three horizontal bars displays, Air Handler Control (AHC) does not recognize unit size code (air handler model size and capacity). Electric recognizes No (Display Alarm...
  • Page 40 Configuring Unit Size Codes (Model Number) Power-up — Unit Size Code (number or letter) displayed represents unit size code (air handler model size and capacity). If three horizontal bars display, then Air Handler Control (AHC) does not recognize unit size code. AHC in IDLE mode (No heating, cooling or indoor fan operation) To enter unit size code...
  • Page 41 Configuring/Detecting Electric Heat Sections The AHC control in the air handler has been enhanced to automatically detect and configure the electric heat when the electric heat harness is connected to the AHC control and 240 Volt power is applied. The air handler no longer requires manual detection using the push button on the AHC Control.

  • Page 42: Heat Pump Operation (Heating And Cooling)

    Heat Pump Operation (Heating and Cooling) Air Handler Control AHC) Indoor Blower Mode Speed and Profiles settings Set Cooling Mode Blower Speed jumper pin . (Low and high indoor blower CFM settings are identical for CUT ON-BOARD JUMPER Y1-Y2 cooling and heat pump) 2-STAGE Y1-Y2 FOR COMPR...

  • Page 43: Cooling Operation

    Cooling Operation Air Handler Control AHC) Indoor Blower Mode Speed and Profiles settings Set Cooling Mode Blower Speed jumper pin. Y1-Y2 Set Cooling Mode Blower Ramping jumper pin. CUT ON-BOARD JUMPER Y1-Y2 FOR 2-STAGE Set Blower Adjust Selection jumper pin. COMPR TWO-STAGE Single or Two-Stage Unit...

  • Page 44: Error Code / Recall Mode

    Error Code / Recall Mode AHC in Idle Mode (No heating cooling or indoor fan operation) To enter Error Code Mode , Turn room thermostat to OFF push and hold button next to single character LED display until solid E symbol appears, release button.

  • Page 45: Indoor Blower Test

    Indoor Blower Test Indoor Blower Test Mode AHC in Idle Mode (No heating cooling or indoor fan operation) To indoor blower test mode , push and hold button next to single character LED display until — (Solid bar), then release button. Turn room thermostat to Push and hold button until the Display will show a...

  • Page 46: Emergency Heat (Heating Heat Pump)

    (less than 50psi). If the coil cannot be cleaned using water alone, GE recommends use of a coil cleaner with a pH in the range of 5 to 9. The coil must be rinsed thoroughly 1.

  • Page 47: Sensor Maintenance

    • Have all unused parts and packaging been disposed Sensor Maintenance It is recommended to check the state of the sensor every • 6 months, at the beginning of each cooling and heating • Is the wiring neat, correct, and in accordance with the season.

  • Page 48: Use Of Air Handler During Construction

    The blower powers up. Use of Air Handler During Construction b. The electric heat powers down. GE does not recommend the use of its air handler unit c. The outdoor compressor powers down. during any phase of construction. Very low return air tem-...

  • Page 49: Decommissioning

    Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all re- frigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant.
  • Page 50 Installing Contractor’s Name_______________________ Installing Date_______________________________ Installing Contractor’s Phone_______________________ Air Handler Model #___________________________ Job Address____________________________________ Thermostat Line Voltage SUPPLY Disconnect Switch Integrated Control Temperature Duct Blower Motor Amps System Electric Heat Amps Duct Static RETURN Filter Drain Line DUCT SYSTEM TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil SUPPLY AIR DUCT Supply External Static ______...
  • Page 51 Installing Contractor’s Name_______________________ Installing Date_______________________________ Installing Contractor’s Phone_______________________ Air Handler Model #___________________________ Job Address____________________________________ Line Voltage Disconnect Switch Thermostat Integrated Control Duct System Duct System Filter RETURN SUPPLY Electric Heat Amps Blower motor Amps Drain Line Duct Static Temperature DUCT SYSTEM TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil SUPPLY AIR DUCT...