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KHA180, 240

KHA180 & 240 Parts Arrangement 

INDOOR COIL

OUTDOOR

FANS

OUTDOOR

COIL

CONDENSATE

DRAIN

FILTERS

(SIX − 24 X 24 X 2")

ECONOMIZER

(OPTIONAL)

ELECTRIC HEAT

(OPTIONAL)

COMPRESSORS

BLOWERS

FILTER

DRIERS

Shipping and Packing List 

Package 1 of 1 contains:

1− Assembled unit

Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is found.

General 

These instructions are intended as a general guide and
do not supersede local codes in any way. Authorities
having jurisdiction should be consulted before
installation.

Availability of units and options varies by brand.

Requirements 

The KHA unit is ETL certified for outdoor installations only
at the clearances to combustible materials listed on unit
nameplate and in figure 1.

Installation of KHA heat pumps must conform with
standards in National Fire Protection Association (NFPA)
Standard for Installation of Air Conditioning and
Ventilating Systems NFPA No. 90A," Standard for
Installation of Residence Type Warm Air Heating and Air
conditioning Systems NFPA No. 90B," local municipal
building codes and manufacturer’s installation
instructions.

The National Electric Code (ANSI/NFPA No. 70−1984) is
available from:

National Fire Protection Association
470 Atlantic Avenue
Boston, MA 02210

UNIT CLEARANCES

C

D

B

A

Outdoor

Air Hood

FIGURE 1

1Unit

Clearance

A

in.(mm)

B

in.(mm)

C

in.(mm)

D

in.(mm)

Top

Clearance

Service

Clearance

45

(1143)

36

(914)

36

(914)

66

(1676)

Unob-

structed

Minimum Opera-

tion Clearance

45

(1143)

36

(914)

36

(914)

41

(1041)

Unob-

structed

Note − Entire perimeter of unit base requires support when elevated above
mounting surface.

   1

Service Clearance 

− Required for removal of serviceable parts.

Minimum Operation Clearance 

− Required clearance for proper unit operation.

Summary of Contents for KHA180

Page 1: ...contact with sharp edges INSTALLATION INSTRUCTIONS KHA180 15 TON KHA240 20 TON HEAT PUMP UNITS 506393 01 11 2010 Supersedes 10 2010 RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE Table Of Contents Di...

Page 2: ...W 711 28 711 12 3 8 314 3 1 4 83 54 1 4 1378 51 1295 90 1 8 2289 29 1 4 743 91 1 8 2315 BASE CONDENSATE DRAIN 5 3 8 137 SIDE ELECTRICAL INLETS END VIEW SIDE VIEW 129 1 2 3289 BASE 128 1 2 3264 LIFTING...

Page 3: ...tallation of KHA heat pumps must conform with standards in National Fire Protection Association NFPA Standard for Installation of Air Conditioning and Ventilating Systems NFPA No 90A Standard for Inst...

Page 4: ...completion The unit components duct system air filters and evaporator coil must be thoroughly cleaned following final construction clean up The unit operating conditions including airflow cooling oper...

Page 5: ...rotection before rigging 2 Connect rigging to the unit base using both holes in each corner See figure 2 3 All panels must be in place for rigging 4 Place field provided H style pick in place just abo...

Page 6: ...y drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys B Control Wiring 1 Route thermostat cable or wires from s...

Page 7: ...installed for loose connections Tighten as required 3 Check to ensure that refrigerant lines do not rub against the cabinet or against other refrigerant lines 4 Check voltage at disconnect switch Volt...

Page 8: ...Set thermostat or temperature control device fan switch toAUTO or ON With fan switch in ON position blower will operate continuously With fan switch in AUTO position the blower will cycle with demand...

Page 9: ...um life and wear can be obtained from belts only if proper pulley alignment and belt tension are maintained Tension new belts after a 24 48 hour period of operation This will allow belt to stretch and...

Page 10: ...6750 665 2 20 745 2 70 815 3 20 880 3 70 940 4 20 995 4 65 1045 5 10 1095 5 60 1145 6 10 1190 6 60 1235 7 10 1275 7 60 7000 675 2 35 755 2 90 825 3 40 890 3 95 950 4 45 1005 4 95 1055 5 40 1105 5 95...

Page 11: ...07 08 5000 03 05 05 07 08 5250 03 06 05 07 09 5500 03 07 05 07 10 5750 03 07 05 08 11 6000 04 08 01 05 08 11 6250 04 08 01 01 05 08 12 6500 04 09 01 02 05 08 13 6750 05 10 01 03 05 08 14 7000 05 10 0...

Page 12: ...th an economizer when outdoor air is acceptable a first stage demand will energize the economizer a second stage demand will energize compressor 1 and outdoor fans 1 2 3 Refrigerant circuits are facto...

Page 13: ...alue shown indicates an overcharge 3 The approach method is not valid for grossly over or undercharged systems Use table 3 or 4 as a guide for typical operating pressures TABLE 5 APPROACH TEMPERATURES...

Page 14: ...e unit is in the heating mode and the defrost thermostat is closed or jumpered If the timing jumper is in the TEST position at power up the defrost control will ignore the test pins When the jumper is...

Page 15: ...ry two years with a lithium base grease such as Alvania 3 Shell Oil Chevron BRB2 Standard Oil or Regal AFB2 Texas Oil Use a hand grease gun for relubrication Add only enough grease to purge through th...

Page 16: ...ions 3 Remove wire ties connecting coils slabs and separate slabs 3 4 76 102mm 4 Clean coils with detergent or commercial coil cleaner 5 Rinse thoroughly with water and reassemble 6 Secure coil slabs...

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