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Haier GE NS22HM, Installation Instructions Manual

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Haier GE NS22HM Installation Instructions Manual Download Page 17

508311G01 / 31-5000754

Page 17 of 26

Issue 2250

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

TWO STAGE /

VARIABLE SPEED

GAS FURNACE

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

Y1

O

C

W1

R
G

TC
TO
ACC2
ACC1

Y1

O

DH

C

W2
W1

R

G

DS

W2

O.D. SENSOR

OPTIONAL

FOR SINGLE STAGE OPERATION INSTALL A JUMPER BETWEEN Y1 TO Y2 ON THE OUTDOOR UNIT 

TERMINAL STRIP

FOR SINGLE STAGE OPERATION INSTALL A JUMPER BETWEEN Y1 TO Y2 ON THE OUTDOOR UNIT 

TERMINAL STRIP

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

SINGLE STAGE FURNACE /

PSC AIR HANDLER

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

Y

O

C

W

R
G

TC
TO
ACC2
ACC1

Y1

O

DH

C

W2
W1

R

G

O.D. SENSOR

OPTIONAL

CONSTANT TORQUE /

VARIABLE SPEED

AIR HANDLER

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

Y1

O

C

W1

R
G

TC
TO
ACC2
ACC1

Y1

O

DH

C

W2
W1

R

G

DS

W2

O.D. SENSOR

OPTIONAL

FOR SINGLE STAGE OPERATION INSTALL A JUMPER BETWEEN Y1 TO Y2 ON THE OUTDOOR UNIT 

TERMINAL STRIP

Figure 9. Conventional 24VAC Heat Pump Thermostat 

Wiring - Single Stage

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

TWO STAGE /

VARIABLE SPEED

GAS FURNACE

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

Y1

O

C

W1

R
G

TC
TO
ACC2
ACC1
R2
Y2

Y1

O

DH

C

W2
W1

R

G

DS

W2

Y2

O.D. SENSOR

OPTIONAL

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

SINGLE STAGE FURNACE /

PSC AIR HANDLER

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

C

W
R
G

TC
TO
ACC2
ACC1
R2
Y2

Y1

O

DH

C

W2
W1

R

G

Y

O.D. SENSOR

OPTIONAL

CONSTANT TORQUE /

VARIABLE SPEED

AIR HANDLER

RAST 6-PIN

CONNECTOR

RAST 6-PIN

CONNECTOR

VARIABLE CAPACITY

OUTDOOR UNIT

CONVENTIONAL 24VAC

HEAT PUMP

THERMOSTAT

W

L

Y2
Y1

O

DS

C

I+

I-

R

DF

TST

Y1

O

C

W1

R
G

TC
TO
ACC2
ACC1
R2
Y2

Y1

O

DH

C

W2
W1

R

G

DS

W2

Y2

O.D. SENSOR

OPTIONAL

Figure 10. Conventional 24VAC Heat Pump 

Thermostat Wiring - Two Stage

Summary of Contents for GE NS22HM

Page 1: ...rvice this equipment Installation and service performed by unqualified persons can result in property damage personal injury or death WARNING Sharp metal edges can cause injury When installing the unit use care to avoid sharp edges WARNING ELECTRICAL SHOCK HAZARD Risk of electrical shock Disconnect all remote power supplies before installing or servicing any portion of the system Failure to discon...

Page 2: ...all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warning or cautions attached to the unit 1 Always wear proper personal protection equipment 2 Always disconnect electrical power before removing panel or servicing equipment 3 Keep hands and clothing away from moving part...

Page 3: ...m building not to exceed 1 4 per foot Figure 1 Slab Mounting Install on a Solid Level Mounting Pad The outdoor section is to be installed on a solid foundation This foundation should extend a minimum of 2 inches beyond the sides of the outdoor section To reduce the possibility of noise transmission the foundation slab should NOT be in contact with or be an integral part of the building foundation ...

Page 4: ...ranty will be void if the drier is not installed Installation of Line Sets DO NOT fasten liquid or suction lines in direct contact with the floor or ceiling joist Use an insulated or suspension type of hanger Keep both lines separate and always insulate the suction line Liquid line runs 30 feet or more in an attic will require insulation Route refrigeration line sets to minimize length DO NOT let ...

Page 5: ...aximum linear liquid lift 60 feet NOTE Maximum lifts are dependent on total length number of elbows etc that contribute to total pressure drop Maximum length vapor riser 60 feet Up to 50 Linear Feet Use rated line sizes listed in Table 3 Between 51 and 150 Linear Feet Crankcase heater and nonbleed port TXV factory installed No additional components required Vertical vapor riser must be sized to th...

Page 6: ...180 150 60 60 7 8 5 8 36 3 4 48 7 8 60 Table 4 Line Set Guidelines 51 to 150 Linear Feet in Length Tonnage Line SIze Total Linear Length ft 25 50 75 100 125 150 24 3 8 25 50 60 60 60 60 Max Elevation ft 36 3 8 25 50 60 56 51 45 1 2 25 50 60 60 60 60 48 3 8 25 50 50 41 31 22 1 2 25 50 60 60 60 60 60 3 8 25 50 36 22 8 NR 1 2 25 50 60 60 60 59 NOTE Shaded rows indicate rated liquid line size A Find y...

Page 7: ... NUT Figure 4 Remove Expansion Valve Uncased Coil Shown 1 On fully cased coils remove the coil access and plumbing panels 2 Remove any shipping clamps from the liquid line and distributor assembly 3 Disconnect the equalizer line from the fitting on the vapor line 4 Remove the vapor line sensing bulb 5 Disconnect the liquid line from the expansion valve at the liquid line assembly 6 Disconnect the ...

Page 8: ...ulator that can control the pressure down to 1 or 2 psig 6 9 to 13 8 kPa WARNING Refrigerant must be reclaimed in accordance with national and local codes WARNING 1 Set the recovery machine for liquid recovery and start the recovery machine Open the gauge set valves to allow the recovery machine to pull a vacuum on the existing system line set and indoor unit coil 2 Position the cylinder of clean ...

Page 9: ...ing bulb insulation is required if mounted external to the coil casing sensing bulb installation for bulb positioning STUB END TEFLON RING LIQUID LINE ASSEMBLY WITH BRASS NUT DISTRIBUTOR ASSEMBLY 3 Install one of the provided Teflon rings around the stubbed end of the check expansion valve and lightly lubricate the connector threads and expose surface of the Teflon ring with refrigerant oil 4 Atta...

Page 10: ...emain round Do not crimp end of the line Remove service cap and core from both the vapor and liquid line service ports 1 2 LIQUID LINE SERVICE VALVE SERVICE PORT CORE SERVICE PORT CAP SERVICE PORT CORE SERVICE PORT CAP CUT AND DEBUR LINE SET SIZE MATCHES SERVICE VALVE CONNECTION DO NOT CRIMP SERVICE VALVE CONNECTOR WHEN PIPE IS SMALLER THAN CONNECTION 3 VAPOR LINE SERVICE VALVE COPPER TUBE STUB RE...

Page 11: ...CE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WRAP SERVICE VALVES To help protect service valve seals during brazing wrap water saturated cloths around service valve bodies and copper tube stubs Use additionalwater saturated cloths underneath the valve body to protect the base paint 4 FLOW NITROGEN Flow regulated nitrogen at 1 to 2 psig through the refrigeration gauge s...

Page 12: ...h side of the manifold gauge set in order to pressurize the line set and the indoor unit E After a few minutes open one of the service valve ports and verify that the refrigerant added to the system earlier is measurable with a leak detector F After the line set has been connected to the indoor and outdoor units check the line set connections and indoor unit for leaks Use the following procedure t...

Page 13: ...er liquid refrigerant Open the manifold gauge valve 1 to 2 psig in order to release the vacuum in the line set and indoor unit G Perform the following Close manifold gauge valves Shut off HFC 410A cylinder Reinstall service valve cores by removing manifold hose from service valve Quickly install cores with core tool while maintaining a positive system pressure Replace stem caps and finger tighten ...

Page 14: ... jumpered to Y2 in the outdoor unit Note that the published performance data is based upon the use of a two stage thermostat Refer to the NS22HM field wiring diagram for a conventional 24VAC single stage thermostat NS22HM Low Voltage Control Wiring Connections The NS22HM variable capacity units are provided with 2 RAST 6 Pin connections for connecting the field low voltage control wiring to the NS...

Page 15: ...or It should not be installed on an outside wall or where it can be affected by sunlight or drafts THERMOSTAT 5 FEET 1 5M Figure 7 NOTE 24VAC Class II circuit connections are made in the control panel Thermostat Type Indoor Unit Type Qty of Wires to Unit NS22HM Terminal Strip Connections Unit Operation Field Wiring Diagram Conventional 24VAC 2 Stage Heat Pump Thermostat Any Furnace or Air Handler ...

Page 16: ...ation Type Less than 100 30m 18 Temperature Rating 35 C Minimum More than 100 30m 16 Table 7 Conventional 24VAC Thermostat Wiring Route High Voltage and Ground Wires Any excess high voltage field wiring should be trimmed and secured away from any low voltage field wiring To facilitate a conduit a cutout is located on the bottom of the control box Connect conduit to the control box using a proper c...

Page 17: ...S C I I R DF TST Y1 O C W1 R G TC TO ACC2 ACC1 Y1 O DH C W2 W1 R G DS W2 O D SENSOR OPTIONAL FOR SINGLE STAGE OPERATION INSTALL A JUMPER BETWEEN Y1 TO Y2 ON THE OUTDOOR UNIT TERMINAL STRIP Figure 9 Conventional 24VAC Heat Pump Thermostat Wiring Single Stage RAST 6 PIN CONNECTOR RAST 6 PIN CONNECTOR VARIABLE CAPACITY OUTDOOR UNIT TWO STAGE VARIABLE SPEED GAS FURNACE CONVENTIONAL 24VAC HEAT PUMP THE...

Page 18: ...ion Temp Stxx x Superheat SHxx x Liquid Pressure LPxxx Liquid Temp Ltxx x and Subcooling SCxx x will be scrolled on the 7 segment display Example S P 1 3 5 pause S t 6 2 pause S H 1 5 pause L P 3 4 5 pause L t 9 6 pause S C 1 0 repeat Charge Mode Jumper Operation in the Cooling Mode On applications with a conventional 24VAC heat pump thermostat the charge mode jumper must be installed on the Charg...

Page 19: ...iency mode has a variable suction pressure setpoint that will vary with the outdoor temperature as the outdoor temperature increases the suction pressure setpoint will decrease When the Cooling Operation Mode jumper is installed in the Normal Mode the suction pressure setpoint is 135 psig When the Cooling Operation Mode jumper is installed in the Comfort Mode the suction pressure setpoint is 125 p...

Page 20: ...apacity until maximum capacity is achieved The NS22HM unit will cycle off once the thermostat demand is satisfied Start Up If unit is equipped with a crankcase heater it should be energized 24 hours before unit start up to prevent compressor damage as a result of slugging CAUTION 1 Rotate fan to check for frozen bearings or binding 2 Inspect all factory and field installed wiring for loose connect...

Page 21: ... access panel Attach low pressure gauge hose to auxiliary service port to access suction side in heating mode NOTE All unit table values are based on 70 to 80 F indoor return air temperature for cooling mode and 65 F to 75 F return air temperature for heat mode High Pressure Switch This unit is equipped with a high pressure switch which is located on the liquid line The SPST normally closed pressu...

Page 22: ...uction line service valves 3 Replace the stem cap Tighten finger tight then tighten an additional 1 6 turn To Close Liquid or Suction Line Service Valve 1 Remove the stem cap with an adjustable wrench 2 Use a service wrench with a hex head extension to turn the stem clockwise to seat the valve Tighten firmly 3 Replace the stem cap Tighten finger tight then tighten an additional 1 6 turn Suction Li...

Page 23: ...w of drainage and clean if necessary SHARP OBJECT HAZARD Condenser coils have sharp edges Wear adequate body protection on body extremities e g gloves FAILURE TO FOLLOW THIS WARNING COULD RESULT IN BODILY INJURY WARNING Condenser Coils Grass cuttings leaves dirt dust lint from clothes dryers and foliage from trees can be drawn into coils by movement of the air Clogged condenser coils will lower th...

Page 24: ...n constant air circulation or filtering is desired On models without a fan selection switch the fan will cycle with the outdoor unit System Switch Set the system switch for heating cooling or auto operation The auto mode allows the heat pump to automatically switch from heating mode to cooling mode to maintain predetermined comfort settings Many heat pump thermostats are also equipped with an emer...

Page 25: ...508311G01 31 5000754 Page 25 of 26 Issue 2250 Figure 15 Wiring Diagram 24 AND 36 HP MODEL ...

Page 26: ..._____________ Actual Amps ______ Rated Volts _______ Actual Volts ________ Condenser Fan Full Load Amps _________ Actual Amps ______ Cooling Mode Suction Pressure ____________________ Liquid Pressure _________ Supply Air Temperature _______________ Ambient Temperature ___________ Return Air Temperature _________ System Refrigerant Charge Refer to manufacturer s information on unit or installation ...

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