Start-Up, Adjustment, And Safety Check; General - Carrier weathermaker 8000 Installation, Start-Up And Operator's Manual

THREE-WIRE
BLK BLK
WHT WHT
GND
AUXILIARY
115-VOLT FIELD-
J-BOX
SUPPLIED
FUSED
DISCONNECT
VOLTS—
UNIT SIZE HERTZ—
PHASE
045-08 115—60—1
045-12 115—60—1
070-08 115—60—1
070-12 115—60—1
091-14 115—60—1
091-16 115—60—1
111-12 115—60—1
111-16 115—60—1
111-20 115—60—1
136-16 115—60—1
136-20 115—60—1
155-20 115—60—1
* Permissible limits of the voltage range at which the unit operates satisfactorily.
† Time-delay fuse is recommended.
‡ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
Step 8—Start-Up, Adjustment, and Safety Check

GENERAL

NOTE: Proper polarity must be maintained for 115-v wiring. If
polarity is incorrect, control board fault indicator light will flash
rapidly and furnace will not operate.
The furnace must have a 115-v power supply properly connected
and grounded. Proper polarity must be maintained for correct
operation. Thermostat wire connections at R, W, C, and Y must be
made at the 24-v terminal block on the control board. The gas
service pressure must not exceed 0.5 psig (14-in. wc), but must be
no less than 0.16 psig (4.5-in. wc).
NOTE 2
W C
FIVE
WIRE
HEATING-
ONLY
W
R
GND
G
C
NOTE 1
CONTROL
Y
BOX
24-VOLT
TERMINAL
BLOCK
NOTES:
FURNACE
Fig. 8—Heating and Cooling Application Wiring Diagram
Table 5—Electrical Data
OPERATING
VOLTAGE RANGE
Maximum* Minimum*
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
THERMOSTAT
R G Y
TERMINALS
CONDENSING
UNIT
TWO
WIRE
1. Connect Y-terminal as shown for proper operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
MAXIMUM MINIMUM
UNIT AMPS WIRE GAGE
6.0 14
8.3 14
5.9 14
8.7 14
9.0 14
10.4 14
8.0 14
10.1 14
14.4 12
10.1 14
13.3 12
14.0 12
This furnace is equipped with a manual reset limit switch or
fuse link in the gas control area. The switch or fuse link opens
and shuts off power to the gas valve if a flame rollout or
overheating condition occurs in the gas control area. DO NOT
bypass the switch. Correct inadequate combustion air supply
problem and reset the switch or replace the fuse link.
Before operating the furnace, check each manual reset switch for
continuity. If necessary, press the button to reset the switch.
The blower compartment door must be in place to complete the
115-v circuit to the furnace.
8
FIELD-SUPPLIED
FUSED DISCONNECT
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
GND
MAXIMUM
MAXIMUM FUSE OR
WIRE LENGTH (FT)‡ HACR-TYPE CKT
BKR AMPS†
47
34
47
32
31
27
35
28
31
28
33
31
A95241
15
15
15
15
15
15
15
15
20
15
20
20