GCSS96 Installation Manual

26
R94
R67
R63
R70
R75
L1
U1
DS1
W8
W5
W19
W27
R69
R522
E12
1
6
R61
R3
R2
R41
W12
W22
W
1
W9
W32
W7
W11
W29
W28
W2
R78
E31
F1
TP12
TP14
E32
E14
W10
R90
R24
R95
R82
C11
E25
RV2
E34
E30
R
K6
K4
R558
R57
R53
R36
R6
W20
W3
W30
W18
W25
W4
W21
W16
W14
W13
W24
W26
W6
Q9
CR13
C13
C15
C14
R33
R74
R73
R65
R54
R44
R27
R23
R79
R60
R58
R18
R17
R16
R13
R12
R11
K2
K3
K5
R29
R9
R43
SW2
RV1
RV3
K1
E21
E9
E33
E29
E1
COOL
E28
HUM-H
E16
XFMR-H
E15
LINE-H
E13
PARK
E11
PARK
E10
EAC-H
E8
HEAT
E24
E23
E20
E19
E18
LINE NEUTRAL
E17
R51
R49
R15
R91
R52
R81
R50
R35
R39
E7
E22
FOR
CUT
SECSEC
100
150
HT OFF DLY
1VDC=1UA
FP
TWINNING
SW1.4
FAULT
SW1.3
SW1.2
SW1.1
RECALL
CGRWY
5206A
AUTOMATIC IGNITION SYSTEM
1
2
1
2
3
45
6
7
89
10
1112
R94
R67
R63
R70
R75
L1
U1
DS1
W8
W5
W19
W27
R69
R522
E12
1
6
R61
R3
R2
R41
W12
W22
W
1
W9
W32
W7
W11
W29
W28
W2
R78
E31
F1
TP12
TP14
E32
E14
W10
R90
R24
R95
R82
C11
E25
RV2
E34
E30
R
K6
K4
R558
R57
R53
R36
R6
W20
W3
W30
W18
W25
W4
W21
W16
W14
W13
W24
W26
W6
Q9
CR13
C13
C15
C14
R33
R74
R73
R65
R54
R44
R27
R23
R79
R60
R58
R18
R17
R16
R13
R12
R11
K2
K3
K5
R29
R9
R43
SW2
RV1
RV3
K1
E21
E9
E33
E29
E1
COOL
E28
HUM-H
E16
XFMR-H
E15
LINE-H
E13
PARK
E11
PARK
E10
EAC-H
E8
HEAT
E24
E23
E20
E19
E18
LINE NEUTRAL
E17
R51
R49
R15
R91
R52
R81
R50
R35
R39
E7
E22
FOR
CUT
SEC
SEC
100
150
HT O FF D LY
1VDC=1UA
FP
TWINNING
SW1.4
FAULT
SW1.3
SW1.2
SW1.1
RECALL
CGRWY
5206A
AUTOMATIC IGNITION SYSTEM
1
2
1
2
3
45
6
7
89
10
1112
CGRWY
ROOM THERMOSTAT
CONDENSOR
CONTACTOR
COILS
ISOLATING
RELAY
(SEE NOTES)
NOTES:
1. ISOLATING RELAY MAY BE ELIMINATED IF LINE VOLTAGE
SUPPLY TO FURNACES IS THE SAME PHASE .
TO VERIFY PHASING:
A) VERIFY SOURCE IS EXACTLY THE SAME EITHER
L1, L2, OR L3 FROM THE SAME TRANSFORMER OR
B) CHECK WITH SCOPE OR PHASE METER
C) IF IN DOUBT USE RELAY
2. IF ISOLATING RELAY IS NOT USED, CONNECT FURNACE
TWINNING
Furnaces may be twinned without the use of a twinning
kit. Furnaces must be the same model and equipped with
PCBBF140 control boards. Follow the diagram provided in
this manual. Connection of the “twin” terminals of each
control together will allow simultaneous operation of two
or more furnace indoor blowers to operate synchronously
on a common duct system. Field installed low voltage
thermostat wiring, 3/16" terminals are required to make
this connection. An isolating relay (24 VAC coil & N/O
SPST) contacts is also required if the furnaces are not fed
from the same line voltage phase. A pulsing DC signal is
used to share the call for fan operation between furnaces.
The duration of the pulse width determines the speed that
the reading control will energize its blower motor.
T O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE , THE
GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING
PLATE . O NLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING
THE GAS VALVE PRESSURE REGULATOR .
CAUTION
WARNING
P OSSIBLE PROPERTY DAMAGE , PERSONAL INJURY OR DEATH MAY
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED . T HE
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION . A LL CONVERSIONS MUST BE PERFORMED BY A
QUALIFIED INSTALLER OR SERVICE AGENCY .
G AS S UPPLY AND P IPING
Natural Gas Minimum: 4.5" w.c. Maximum: 10.0" w.c.
Propane Gas Minimum: 11.0" w.c. Maximum: 13.0" w.c.
INLET GAS SUPPLY PRESSURE
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate
on the type of gas applied. This includes any conversion kits
required for alternate fuels and/or high altitude.
R
Y C
Furnace Integrated
Control Module
Remote Condensing Unit
(Single-Stage Cooling)
R
Room
Thermostat
Figure 31
Inlet gas supply pressures must be maintained within the ranges
specified in the following table. The supply pressure must be
constant and available with all other household gas fired appli-
ances operating. The minimum gas supply pressure must be
maintained to prevent unreliable ignition. The maximum must
not be exceeded to prevent unit overfiring.