Lennox 10GCS-024, 10GCS-030, 10GCS-036, 10GCS-048, 10GCS-060 Installation Instructions Manual

LENNDX

INSTALLATION

,1,_2000Lennox industries Inc

Daltas, Texas, USA

10GCS

12GCS

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

INSTRUCTIONS

10GCS & 12GCS

SERIES UNITS

GAS PACKAGED UNITS (2-5 TONS)

Armstrong # 38152A058

504,245M
08/03

Supersedes 05/00

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

Parts Arrangement ............................. 4

Shipping & Packing List ......................... 4

General ....................................... 4

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

Clearances .................................... 5

Rigging & Setting Unit ........................... 5

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

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

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

Installing Vent Hood ............................. 6

Combustion Discharge .......................... 6

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

Gas Piping .................................... 7

LPG/Propane Units, Tanks, & Piping .............. 8

Electrical ...................................... 8

Sequence of Operation ......................... 11

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

Start-up Check List ............................ 13

Heating Start-up ............................... 13

Burner Adjustments ............................ 14

Manifold Gas Pressure Adjustment ............... 14

High Altitude Information ....................... 14

Unit Controls .................................. 14

Maintenance .................................. 15

Troubleshooting ............................... 15

Led Codes & Flash Rates ....................... 16

Repair Parts & Accessories ..................... 16

_pu Technical

blications

Litho U.S.A.

j -&WARNING

Do not store or use gasoline or other

flammable vapors and liquids in the
vicinity of this or any other ap-

pliance.
Installation and service must be

performed by a qualified installer,

service agency or the gas supplier.

08/03

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Extinguish any open flames.

• Do not touch any electrical switch; do not

use any phone in your building.

• Immediately call your gas supplier from a

neighbor's phone. Follow the gas supplier's
instructions.

• If you cannot reach your gas supplier, call

the fire department.

504,245M

Page 1

IIIllllllllllllllllllllllllllllllHlllllllll

Model

Number

t0GCS-024
t0GCS-030

t0GCS-036
10GCS-042

10GCS-048
10GCS-O6O

EVAPORATOR _

COIL

CONDENSER

COIL I_

INTAKE

AIR

CONDENSER

COIL FAN

CONDENSER

COIL

Corner Weights -- Ibs. (kg)

AA BB CC DD

Ibs, kg Ibs. kg Ibs, kg Ibs. kg

75 34 67 30 68 3t 9t 4t
77 35 69 3t 70 32 95 43

84 38 76 34 77 35 t03 47
92 42 83 38 83 38 t12 5t

tt2 5t t01 46 t01 46 t36 62
116 53 106 48 106 48 142 64

.9.

CONDENSER COIL

INTAKE AIR

TOP VIEW

CONDENSER COIL

EXHAUST AIR

4-7/8

(124)

_i rI-REFRIGE RANT

BLOWER

HEAT

EXCHANGER

SERVICE

PORTS

FLUE

OUTLET

Center of Gravity -- inches (mm)

Model EE

Number inch mm

t OGCS-024 2t -1/2 546
t OGCS-03O 21-1/2 546

t OGCS-036 2t -1/2 546
t OGCS-042 21-1/2 546

t OGCS-048 23-3/8 594
1OGCS-O6O 23-3/8 594

AA

G G

DD

inch

25
25

25
25

30-t/8
30-1/8

FF

mm
635

635
635
635

5tt
511

BB

FORKLIFT

SLOTS

(Front and

Back Only)

BASERAIL

BASE RAIL

Q

FRONT VIEW

C

CONDENSER COIL_h,

EXHAUST AIR m

FILTER /

RACK

CONDENSATE

DRAIN

4-5/8 _

(117) ____ _ R BASE RAIL _!

LEFT SIDE

Model A B C D E F G H

Number inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm

10GCS-024 t 30 t 36 27-11/16 703 45-5/8 1159 45-5/8 1159 25-1/4 641 1-13/16 46 4 102 1-7/8 48 17-15/16 456
10GCS-042 3t-11/16 805 45-5/8 1159 45-5/8 1159 29-1/4 743 1-13/16 46 4 102 1-7/8 48 19-15/16 506

10GCS-048,060 33-11/16 856 54-11/16 1389 49-5/8 1260 3t-7/16 799 1-1/8 29 6-1/8 159 2-1/4 57 19-15/16 506

Model J K L M N P Q R

Number inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm

10GCS-024 t 30 t 36 2-1/4 57 15-5/8 397 11-1/2 292 17-1/2 445 5 127 4 102 46-3/8 1179 46-3/8 1179
10GCS-042 2-1/4 57 t5-5/8 397 tt-1/2 292 t7-t/2 445 5 t27 4 t02 46-3/8 tt79 46-3/8 t179

10GCS-048, 60 3-1/2 89 17-1/8 435 12 305 2t-1/2 527 4-1/8 105 5-5/8 143 55-1/4 1403 50-1/2 1283

4

-(

A

2 -7/16

(62)

M M

J

GAS

INLET

ELECTRICAL COMBUSTION AIR

INLETS INDUCER BASE RAIL

BACK VIEW

BASE RAIL

C

RIGHT SIDE

Page 2

Model

Number

12GCS-024
12GCS-030

t2GCS-036
t2GCS-042

12GCS-048, -060

Corner Wei_ hts -- Ibs.

AA BB ''CC DD

Ibs, kg Ibs, kg Ibs, kg Ibs, kg

80 36 69 3t 73 33 99 45
82 37 71 32 75 34 103 47

89 40 78 35 82 37 tll 50
97 44 89 40 88 40 t30 59

117 53 103 47 106 48 144 65

Center of Gravity -- inches (mm)

Model

Number inch mm inch
t2GCS-024 2t 533 25-t/2
t2GCS-030 2t 533 25-t/2

12GCS-036 2t 533 25-1/2
t2GCS-042 2t 533 25-t/2
t2GCS-048, -060 22-3/4 578 30-1/2

AA

EE

G

FF

mm
648
648

648
648

775

BB

EVAPORATOR /

COIL

CONDENSER

COIL _D

INTAKE

AIR

CONDENSER

COILFAN

CONDENSER

COIL

FORKLIFT

SLOTS

(Front and

Back Only)

BASE RAIL

i :!

/

/ '_ CONDENSER COIL

/

t CONDENSER COIL

INTAKE AI R

TOP VIEW 4-7/8

B r_11241_-R

EXHAUST AIR EFRIGERANT

Q BASE RAIL _---I _ M'_I FI_ M "_P

FRONT VIEW BACK VIEW

:_ BLOWER

J

m

i :!i

i
!

HEAT

j EXCHANGER

3

SERVICE

PORTS

FLUE

OUTLET

E

EE

1

DD

FF "_4 CC

TOP VIEW BASE SECTION

B _--

L

V

[(51) A

E-ID

\ BASE RAIL

CONDENSER COIL,_IL

C = = C

EXHAUST AIR II

FILTER

RACK

DRAIN

I BASE RAIL

R ELECTRICAL COMBUSTION AIR

LEFT SIDE INLETS RIGHTINDUCERSIDE BASERAIL

Model A B C D E F G H

Number inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm

12GCS-024, 30, 36 27-11/16 703 45-5/8 1159 45-5/8 1159 25-1/4 641 1-13/16 46 4 102 1-7/8 48 17-15/16 456
12GCS-042 3t-tl/16 805 45-5/8 tt59 45-5/8 tt59 29-t/4 743 t-13/16 46 4 t02 t-7/8 48 t9-t5/t6 506

12GCS-048, 060 33-tl/16 856 54-tl/16 t389 49-5/8 t260 3t-7/16 799 t-1/8 29 6-t/8 t59 2-1/4 57 t9-t5/t6 506

Model

Number inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm

12GCS-024, 30, 36 2-1/4 57 15-5/8 397 11-1/2 292 17-1/2 445 5 127 4 102 46-3/8 1179 46-3/8 1179
12GCS-042 2-1/4 57 15-5/8 397 11-1/2 292 17-1/2 445 5 127 4 102 46-3/8 1179 46-3/8 1179

12GCS-048, 060 3-1/2 89 17-1/8 435 12 305 21-1/2 527 4-1/8 105 5-5/8 143 55-1/4 1403 50-1/2 1283

J K L M N P Q R

Page 3

GAS

J

condensercoil

compressor

condenserfan

blower motor

gas

pressure switch

manifold

gas valve

combustion
air inducer

Figure 1

1 - Assembled gas package unit
1 - Vent hood assembly with screen and screws

As soon as the unit is received, it should be inspected for
possible damage during transit. If damage is evident, the
extent of the damage should be noted on the carrier's
freight bill.A separate request for inspection by the carrier's
agent should be made in writing.

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

The 10GCS and 12CGS units are single-package air
conditioners with gas heat designed for outdoor installation
on a rooftop or a slab.

The units are completely assembled. All piping, refrigerant
charge, and electrical wiring are factory installed and

heatexchanger

assembly

burner box

control box section

tested. The units require only electric power, gas piping,
condensate drain and duct connections plus assembly of
heating rain hood at the point of installation.

NOTE - These units must not be used as a construction
heater at any time during any phase of construction.

Very low return air temperatures, harmful vapors, and
misplacement of the filters will damage the unit and its
efficiency.

WARNING

Page 4

WARNING

Service Clearances for Units

Top Clearance Unobstructed

Bottom Clearance Is 10 In.

right

ill

12 in.

These units are design certified by E.T.L and E.T.L
Canada as follows:

1 - For use as a forced air furnace with cooling unit.

2 - For outdoor installation only.

3 - For installation on combustible material.

4 - For use with natural gas or propane gas.

Not suitable for use with conventional venting systems
These units must be installed in accordance with the

following national and local safety codes.

1 - National Electrical Code ANSI/NFPA No. 70 latest edi-

tion (U.S.A.).

2 - Local gas utility requirements. In the absence of local

gas codes the National Fuel Gas Code ANSI Z223.1
latest edition should be used. (U.S.A.)

3 - Canadian Electrical Code C22.1 Part 1 (latest edition).

4- Canadian Installation Codes CAN/CGA-B149.1 & .2

(latest edition).
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer's and/or customer's

expense.

*Rear clearance is 36 in. with or 2 in. without an economizer.

Figure 2

In the U.S. units may be installed on combustible floors
made from wood or class A, B, or C roof covering material.

In Canada, units may be installed on combustible floors.
Units must be installed outdoors. Overhanging structures

or shrubs should not obstruct condenser air discharge
outlet.

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

Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. A
sling assembly may be used to lift unit. Spreaders whose
length exceeds the largest dimension across the unit
MUST be used across the top of the unit.

Ak CAUTION

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.
When installed at ground level, this unit must be used with

the 4-inch lift kit or other applicable means to raise the
bottom of the flue hood to 12 inches above ground to meet
the snow requirements. See Combustion Discharge

section. Clearance to combustibles below unit is 10 inches
since the flue points down.

NOTE - Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet, combustion air in-

let or vent outlet.

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.

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.

Page 5