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INSTALLATION INSTRUCTIONS
NS16H
This manual must be left with the homeowner for future reference
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be
alert to the potential for personal injury or death.
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, or service agency.
IMPORTANT: Special procedures are required for clean-
ing the all-aluminum coil in this unit. See page
this instruction for information.
General
Contact GE Appliances at:
Homeowner:
HVAC Pro:
ppliances irand ater.com
866-814-3633
Split System USAC and USHP matches:
AHRIDirectory.org
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
STEP 1 – SETTING THE UNIT – Clearances
See NOTES
See
NOTES
See NOTES
GE Appliances
A Haier Company
Appliance Park
Louisville, KY 40225
31-5000945 / 508424G01
in
ppliances.com
or
NOTES -
Service clearance of 30 in. (762 mm) must be maintained on one of
the sides adjacent to the control box.
Clearance to one of the other three sides must be 36 in. (914 mm).
See
Clearance to one of the remaining two sides may be 12 in. (305
NOTES
mm) and the final side may be 6 in. (152 mm).
A clearance of 24 in. must be maintained between two units.
CONTROL
48 in. (1219 mm) clearance required on top of unit.
BOX
Issue 2427
Single Stage Heat Pump
must be installed with an approved indoor air
handler or
ratings, visit
instructions are intended as a general guide and do
not
supersede
local codes in any way. Consult
authorities having jurisdic-tion before installation.
Charging information is given on the charging
procedure sticker on the unit access panel. For
more in-depth information, consult the Installation
and Service Procedures manual.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
NOTE – This unit NS16H is a PARTIAL UNIT AIR CONDI-
TIONER, 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.
(P) 508424G01
. These
NOTICE!
Page 1 of 23
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Table of Contents
Related Manuals for Lennox NS16H 5 Series
Summary of Contents for Lennox NS16H 5 Series
- Page 1 INSTALLATION INSTRUCTIONS Single Stage Heat Pump NS16H This manual must be left with the homeowner for future reference This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death.
- Page 2 WARNING WARNING • Do not use means to accelerate the defrosting pro- To prevent serious injury or death: cess or to clean, other than those recommended by the 1. Lock-out/tag-out before performing maintenance. manufacturer. 2. If system power is required (e.g., smoke detector •...
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Page 3: Refrigerating System
IMPORTANT IMPORTANT When removing refrigerant from a system, either for When breaking into the refrigerant circuit to make servicing or decommissioning, it is recommended good repairs – or for any other purpose – conventional practice that all refrigerants are removed safely. procedures shall be used. -
Page 4: Unit Dimensions - Inches (Mm)
TAmin Table Charge (lb) 10.0 15.0 20.0 25.0 30.0 Charge (kg) 11.3 13.6 Minimum Conditioned Area (ft2) 149.9 224.9 299.9 374.8 449.8 Minimum Conditioned Area (m2) 13.9 20.9 27.9 34.8 41.8 NOTE – Multiply values in TAmin table by the Altitude Adjustment Factors to correct TAmin based on installed altitude. Altitude Adjustment Factor Altitude (m) 1000... - Page 5 IMPORTANT IMPORTANT This unit must be matched with an indoor coil as use with R-454B refrigerant must be ordered separately and installed prior to operating the system. NOTE - IMPORTANT The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
- Page 6 NOTE - When installing refrigerant lines longer than 50 Line Set Joints – Furnace Application feet, refer to the Refrigerant Piping Design and Fabrication Evaporator primary line set joints in all applications shall Guidelines manual available on www.geappliances.com have a line set joint sleeve. or contact the Technical Support Department Product Evaporator primary line sets should not have additional Application group for assistance...
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Page 7: Installation
LINE SET IMPORTANT — Refrigerant lines must not contact structure. INSTALLATION REFRIGERANT LINE SET — INSTALLING Line Set Isolation - The following illustrations are VERTICAL RUNS (NEW CONSTRUCTION SHOWN) examples of proper refrigerant line set isolation: NOTE - Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the REFRIGERANT LINE SET —... -
Page 8: Flushing Procedure
STEP 2 – REFRIGERANT PIPING – (Continued) TYPICAL EXISTING FIXED ORIFICE TYPICAL EXISTING EXPANSION VALVE REMOVAL REMOVAL PROCEDURE PROCEDURE (UNCASED COIL SHOWN) (UNCASED COIL SHOWN) STUB END TWO-PIECE PATCH PLATE LIQUID LINE CHECK DISTRIBUTOR TUBES (UNCASED COIL ONLY) ORIFICE EXPANSION LIQUID LINE ORIFICE HOUSING HOUSING VALVE... - Page 9 STEP 2 – REFRIGERANT PIPING – Brazing Procedures CAP AND CORE REMOVAL CUT AND DEBUR Cut ends of the refrigerant lines square (free from nicks or dents) Remove service cap and core from and debur the ends. The pipe must remain round. Do not crimp end both the vapor and liquid line service of the line.
- Page 10 WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water-saturated cloths around service valve bodies and copper tube stubs. Use additional water-saturated cloths underneath the valve body to protect the base paint. FLOW NITROGEN Flow regulated nitrogen (at 1 to 2 psig) through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the vapor valve stem port.
- Page 11 STEP 2 – REFRIGERANT PIPING – Install Indoor Expansion Valve at the indoor coil. See the NS16H 1/2 Turn INDOOR EXPANSION VALVE INSTALLATION ® 3 - Install one of the provided Teflon rings around the TWO PIECE stubbed end of the check expansion valve and lightly 11 12 (Uncased Coil Shown) PATCH PLATE...
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Page 12: Step 3 - Leak Test And Evacuation
STEP 3 – LEAK TEST AND EVACUATION LEAK TEST HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN R-454B CONNECT GAUGE SET A - Connect the high pressure hose of an R-454B manifold gauge set to the vapor valve service port. NOTE - Normally, the high pressure hose is connected to the liquid line port. - Page 13 EVACUATION HIGH CONNECT GAUGE SET NOTE - Remove cores from service valves (if not already done). A - Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve B - Connect high side of manifold gauge set to OUTDOOR MANIFOLD liquid line service valve...
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Page 14: Electrostatic Discharge
STEP 4 – ELECTRICAL – Circuit Sizing WARNING and Wire Routing Fire Hazard. Use of aluminum wire with this product may In the U.S.A., wiring must conform with current local codes and the current National Electric Code (NEC). In Canada, or death. -
Page 15: Typical Control Wiring
STEP 4 – ELECTRICAL – (Continued) – High Voltage and Field Control Wiring ROUTING HIGH VOLTAGE, GROUND AND CONTROL WIRING HIGH VOLTAGE / 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 in the bottom of the control panel. - Page 16 Torque Requirements When servicing or repairing heating, ventilating and air conditioning components, ensure the fasteners are appro- priately tightened. Table 2 lists torque values for fasteners. TABLE 2 TORQUE REQUIREMENTS Parts Recommended Torque Service valve cap 8 ft.-lb. 11 NM Sheet-metal screws 16 in.-lb.
- Page 17 Charging Verify the unit is electrically grounded before charging the refrigerating system. Charge should be checked and adjusted using information outlined in this section and in the tables provided on the R-454B is a zeotropic blend of two refrigerants. At any given refrigerant pressure, R-454B will have two saturation temperatures, a saturated liquid temperature and a saturated vapor temperature.
- Page 18 Nominal Defrost Time Selection Input Defrost System (Replaces High Stage Lock-in Temperature Selection In- This section addresses: put) [BE1] • Emergency Heat The nominal defrost time selection input is provided by the position of a selection shunt on the P3 header. If the nom- •...
- Page 19 DEMAND DEFROST CONTROL (A108) DIAGNOSTIC LEDS conditions that are described in table 3. TABLE 3 DEMAND DEFROST CONTROL (A108) DIAGNOSTIC LEDS DS1 and DS2 System Status, Fault and Lockout Codes Condition/Code Possible Cause(s) Solution Type Green Check control transformer power (24V). No power (24V) to demand defrost If power is available to demand defrost control and Status...
- Page 20 • Check the indoor unit drain line for obstructions month- Professional Maintenance ly. The indoor coil is equipped with a drain pan to collect condensate formed as your system removes humidity NOTICE ! from the inside air. Have your dealer show you the loca- Failure to follow instructions will cause damage to tion of the drain line and how to check for obstructions.
- Page 21 4 - Inspect the indoor coil drain pans and condensate Decommissioning drains for rust, debris, obstructions, leaks or cracks. Before carrying out this procedure, it is essential that the the pan through to the outlet of the pipe. Clean or technician is completely familiar with the equipment and all its detail.
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Page 22: Start Up Checks
NS16A Start-Up and Performance Checklist Customer Address Indoor Unit Model Serial Outdoor Unit Model Serial Notes: START UP CHECKS Refrigerant Type: Rated Load Amps: 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:... - Page 23 31-5000945 / 508424G01 Issue 2427 Page 23 of 23...
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