Klimaire GM80S Series - Manual (Page 23)

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I&O manual
9.3 Power Cord Installation In Furnace J-box
NOTE: Power cords must be able to handle the electrical
requirements listed in Table 12. Refer to power cord manufacturer's
Remove cover from J-Box.
Route listed power cord through 7/8-in. (22 mm) diameter
hole in J-Box.
Secure power cord to J-Box bracket with a strain relief
bushing or a connector approved for the type of cord used.
Secure field ground wire to green ground screw on J-Box
bracket.
Connect line voltage leads as shown in Fig. 27.
Reinstall cover to J-Box. Do not pinch wires between cover
and bracket. 1.
2.
3.
4.
5.
6.
9.6 Accessories (Field Supplied)
9.7 Grounding
1. Electronic Air Cleaner (EAC)
Connect an accessory Electronic Air Cleaner (if used) using
l/4-in female quick connect terminals to the two male 1/4-in
quick-connect terminals on the control board marked EAC-H
and EAC-M. The terminals are rated for 115V AC, 1.0 amps
maximum and are energized during blower motor operation.
(See Fig. 26.)
Connect an accessory 115V AC, 0.5 amp. maximum
humidifier (if used) to the l/4-in male quick-connect HUM-H
terminal and HUM-N terminal on the control board. The HUM
terminal is energized when gas valve relay (GVR) is
energized. (See Fig. 26.)
The furnace must be electrically grounded in accordance with local
codes or, in the absence of local codes, with the National Electrical
Code, ANSI/NFPA 70, and /or the Canadian Electrical Code, CSA
C22.1, Part 1, if an external electrical source is utilized.
2. Humidifier (HUM)
Remove cover from J-Box.
Route BX cable into 7/8-in. (22 mm) diameter hole in J-Box.
Secure BX cable to J-Box bracket with connectors approved
for the type of cable used.
Secure field ground wire to green ground screw on J-Box
bracket.
Connect line voltage leads as shown in Fig. 27.
Reinstall cover to J-Box. Do not pinch wires between
cover and bracket. 1.
2.
3.
4.
5.
6.
Route field ground wire through holes in electrical box and
casing, and into furnace J-Box.
Reattach furnace J-Box to furnace casing with screws removed
in Step 4.
Secure field ground wire to J-Box green ground screw.
Complete electrical box wiring and installation. Connect line
voltage leads as shown in Fig. 27. Use best practices (NEC in
U.S. and CSA C22.1 in Canada) for wire bushings, strain relief,
etc.
Reinstall cover to J-Box. Do not pinch wires between cover and
bracket.
9.
10.
11.
12.
13.
Remove the desired electrical box hole knockout and position
the hole in the electrical box over the hole in the furnace casing.
Fasten the electrical box to casing by driving two field-supplied
screws from inside electrical box into casing steel.
Remove and save two screws holding J-Box. (See Fig. 25.)
Pull furnace power wires out of l/2-in. (13 mm) diameter hole in
J-Box. Do not loosen wires from strain-relief wire-tie on outside
of J-Box.
Route furnace power wires through holes in casing and electri-
cal box and into electrical box.
Pull field power wires into electrical box.
Remove cover from furnace J-Box. 2.
3.
4.
5.
6.
7.
8.
9.4 Bx Cable Installation In Furnace J-box
9.5 24-V Wiring
Make field 24V connections at the 24V terminal strip. (See Fig. 26.)
Connect terminal Y/Y2 as shown in Fig. 25 for proper cooling
operation. Use only AWG No. 18, color-coded, copper thermostat
wire.
The 24V circuit contains an automotive-type, 3-amp.. fuse located on
the control. Any direct shorts during instaIlation, service, or
maintenance could cause this fuse to blow. If fuse replacement is
Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
National Electrical Code (NFPA-70-latest edition) and all local code
The furnace shall be installed so that the electrical components are protected from water.
Table 12: Ratings & Physical / Electrical Data
Input Output
Nominal
Airflow MAX. Unit
Amps
AFUE
Air Temp. Rise
Max.
Over-Current
Protection Amps
Min. Wire Size
(awg) @ 75 ft
Max. Outlet
Air Temp
MBH kW MBH kW CFM °F °C °F °C
50A
80B
80C
100C
100D
120D
135D
14.7
23.4
23.4
29.3
29.3
35.2
39.6
40
64
64
80
80
96
108
11.8
18.7
18.7
23.4
23.4
28.1
31.7
1200
1600
1600
2000
2000
2000
2000
7.1
8.5
8.7
9.7
10.4
10.1
10.0
80 15 14 200
93
93
93
93
93
93
93
200
200
200
200
200
200
14
14
14
14
14
14
15
15
20
20
20
20
80
80
80
80
80
80
25-55
30-60
30-60
30-60
30-60
35-65
40-70
14-31
70A 20.5 56 16.4 1200 7.1 80 15 14 200 93
17-33
30-60 17-33
17-33
90B 26.4 72 21.1 1600 8.5 93 200 14 15 80 30-60 17-33
17-33
110C 32.2 88 25.8 2000 9.7 93 200 14 20 80 35-65 19-36
17-33
19-36
22-39