Lennox Merit 13CHP-24, Merit 13CHP-36, Merit 13CHP-30, Merit 13CHP-42, Merit 13CHP-60 Installation Instructions Manual

INSTALLATION

,t,: 2006 Lennox Industries inc,

DaIias, Texas, USA

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

INSTRUCTIONS

13CliP SERIES UNITS

PACKAGED HEAT PUMPS (2-5 TONS)
505,175M (38152A074)

02/06

1 - Assembled packaged heat pump unit
As soon as the unit is received, it should be inspected for
possible damage during transit. If you find any damage,
immediately contact the last carrier.

Ak WARNING

Ak WARNING

_j_p Technical

ublications

Litho U.S.A.

Shipping & Packing List ......................... 1

Unit Dimensions ............................... 2

Parts Arrangement ............................. 3

General ....................................... 3

Requirements .................................. 4

Location Selection .............................. 4

Rigging & Setting Unit .......................... 4

Clearances .................................... 4

Existing Common Vent Systems .................. 5

Condensate Drain .............................. 6

Filters ......................................... 6

Supply & Return Connections .................... 6

Compressors .................................. 7

Electrical ...................................... 7

Defrost System ............................... 10

Unit Start-Up and Operation .................... 11

Condenser Fan Clearances ..................... 12

Maintenance .................................. 12

_kCAUTION

,&,WARNING

02/06

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Page 1

505,175M

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AA

21,%

2-3/4

(7O)

DOWN-FLOW

RETURNAIR

OPENING

DD

,9 B

f 2-1/2 (64)

TOP VIEW

DOWN-FLOW

SUPPLYAIR

BB

CC

f

C

Model

Number

13CHP-24
13CHP-30

13CHP-36
13CHP-42

13CHP-48
13CHP-60

Corner Weights

74

94

74

94

84

101

108

136

112

137

117

143

HORIZONTAL HORIZONTAL

SUPPLY AIR RETURN AIR

Center Of

Gravity

125 97 15.5
125 97 15.5

126 105 16
176 140 20

177 144 20
184 151 20

FF
in.

28.5

28.5

29.5
33

33.5

33.5

FRONT VIEW

BACK VIEW

o

ELECTRICALINLET

--..,

2-1/2 (64) '_ _ CONDENSATEDRAIN

END VIEW END VIEW

Model No.

13CHP-24
13CHP-30 34-1/4 870 65-3/8 1661 36-1/2 927 11-1/4 286 17-1/4 438
13CHP-36

13CHP-42
13CHP-48 38-1/4 972 75 1905 46 1168 11-1/4 286 19-1/4 489

13CHP-60

Model No.

13CHP-24
13CHP-30 20 598 8-1/2 216 3 78 29-1/4 514 4-1/2 114 19 483
13CHP-36

13CHP-42
13CHP-48 22 559 9-1/4 241 3-1/4 83 22-1/4 572 4 102 16-1/4 413
13CHP-60

A B C D E

in. mm in. mm in. mm in. mm in. mm

F G H J K L

in. mm in. mm in. mm in. mm in. mm in. mm

Page 2

COIL

MOTOR

CONTROL B(

SECTION

HEATING SECTION

REVERSING

These installation instructions are intended as a general
guide only, for use by an experienced, qualified contractor.

The Merit® Series 13CliP units are single-package heat
pump units designed for outdoor installation on a rooftop or
a slab. The units are equipped with a transformer and
blower control for applications which do not include electric
heat. Electric heat sections are available for separate

order.
The unit must be sized based on heat loss and heat gain

calculations made according to the methods of the Air
Conditioning Contractors of America (ACCA).

The units are shipped assembled. All piping, refrigerant
charge, and electrical wiring are factory-installed and
tested. The units require electric power, condensate drain
and duct connections at the point of installation.

Use of this unit as a construction heater or air conditioner
is not recommended during any phase of construction.

Very low return air temperatures, harmful vapors and
operation of the unit with clogged or misplaced filters will

damage the unit.

FAN

COIL

If this unit has been used for heating or cooling of buildings
or structures under construction, the following conditions
must be met or the warranty will be void:

• A room thermostat must control the unit. The use of
fixed jumpers that will provide continuous heating or

cooling is not allowed,

• A pre-filter must be installed at the entry to the return air
duct,

• The return air duct must be provided and sealed to the
unit,

• Return air temperature range between 55°F (13°C)
and 80°F (27°C) must be maintained,

• Air filters must be replaced and pre-filter must be re-
moved upon construction completion,

• The unit components, duct system, air filters and evap-
orator coil must be thoroughly cleaned following final
construction clean-up.

• The unit operating conditions (including airflow, cool-
ing operation, and heating operation) must be verified

according to these installation instructions.

Page 3

Theseunitsmustbe installedin accordancewith all
applicablenationalandlocalsafetycodes,

Theseinstructionsareintendedasageneralguideanddo
notsupersedelocalcodesinanyway,Consultauthorities

havingjurisdictionbeforeinstallation.
Ifcomponentsaretobeaddedtoaunittomeetlocalcodes,

theyaretobeinstalledatthedealer'sand/orcustomer's
expense.

Theseunitsaredesignlistedby ULin boththeUnited
StatesandCanadaasfollows:

• Foruseasaheatpump,

• Foroutdoorinstallationonly.

• Forinstallationoncombustiblematerial.

5 - The unit foundation should be raised a minimum of 3"

above finish grade, In areas which have prologed pe-
riods of temperature below freezing and snowfall,
elevate the unit above the average snow line. Take
care to allow free drainage of condensate from de-
frost cycles to prevent ice accumulation. Do not lo-
cate the unit near walkways to prevent the possible
icing of surfaces due to defrost condensate.

Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. An
optional lifting lug kit (92M51) may be purchased

separately for use in rigging the unit for lifting. Spreaders

MUST be used across the top of the unit. Recommended
spreader length: 2, 2-1/2, 3-ton units -- 44"; 3-1/2, 4, 5-ton

units -- 54".

WARNING

Use the following guidelines to select a suitable location for
these units.

1 - Unit is designed for outdoor installation only. Unit must

be installed so all electrical components are protected
from water,

2 - Condenser coils must have an unlimited supply of air.

3 - For ground level installation, use a level pre-fabricated

pad or use a level concrete slab with a minimum thick-
ness of 4 inches. The length and width should be at
least 6 inches greater than the unit base. Do not tie the
slab to the building foundation.

4 - Maintain level within a tolerance of 1/4 inch maximum

across the entire length or width of the unit.

Accessory Lift Kit

Figure 1

CAUTION

Units may also be moved or lifted with a forklift while still in
the factory supplied packaging,

NOTE - Length of forks must be a minimum of 42 inches,

All units require certain clearances for proper operation
and service, Refer to figure 2 for the clearances required
for combustible construction, servicing, and proper unit
operation.

Page 4