Sequence Of Operation; Heating Mode - Carrier 58PAV Installation, Start-Up, And Operating Instructions 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
090-14 115—60—1
090-16 115—60—1
111-12 115—60—1
111-16 115—60—1
111-20 115—60—1
135-16 115—60—1
135-20 115—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.
This furnace is equipped with a manual reset limit switch in
the gas control area. The switch 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.
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.
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

SEQUENCE OF OPERATION

Furnace control must be grounded for proper operation, or
control will lockout. Control is grounded through green wire
routed to gas valve and burner bracket screw.
Using the schematic diagram shown in Fig. 10, follow the
sequence of operation through the different modes. Read and
follow the wiring diagram very carefully.
NOTE: If there is a power interruption and any thermostat call,
the control initiates a 90-sec blower only on period before starting
another cycle.

1. Heating mode

When the wall thermostat "calls for heat," the R-W circuit
closes. The furnace control performs a self-check, verifies the
pressure switch contacts are open, and starts inducer motor.
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