Reznor HRPD (Outdoor Duct Furnaces) Unit Installation Manual - Manual (Page 15)

Form I-RP/HRPD, P/N 132210 R14, Page 15
FIGURE 11A - Power-Vented Furnace with Standard Single-Stage Gas
Valve, W.D. 274956
& CAPACITOR
VENTER MOTOR
L1 F L2
8 10
12
1
2
4
11
2
Y
Y W
BK
Y
W
BL R
BK BK BK
7
7
7
BK BR 25
H TD H
BR
BR
W 24
H TD H
BR
7
BK
BL
W
TIME DELAY
RELAY COIL
12 - 29
22
FAN TD
HEATER
CR
22
7
BLOWER
RELAY COIL
CUSTOMER'S
24 VOLT
8 VA. MAXIMUM
TERMINAL BLOCK --
HEATER COMPARTMENT
1, 2, 4, 7, 8, 10,
WHITE - W
PURPLE - PR
BLUE - BL
GREEN - G
YELLOW - Y
ORANGE - O
RED - R
BROWN - BR
BLACK - BK
WIRING CODE
TOTAL WIRE MINIMUM RECOMMENDED
LENGTH WIRE SIZE
150 FEET #18 GA.
250 FEET #16 GA.
350 FEET #14 GA.
FIELD CONTROL WIRING
BK
8
BK Y
BR
7
BL
LINE/1/60
GRD
G
40 VA. CONTROL
TRANSFORMER
BK Y
BL BR
R
UNIT AUTOMATIC
LIMIT CONTROL SWITCH
PRESSURE
COMBUSTION
NC
NO
COM
LINE VOLT
24V
11, 12, F, L1 & L2
RP SERIES AH2 OR AH3-AG1-CL1 WD # 274956 REV. #1
OPTIONAL FIELD WIRING
OPTIONAL FACTORY WIRING
FACTORY WIRING
FIELD WIRING
Y
8
SET ANT. AT 1.0 AMPS
OPT. SINGLE STAGE
THERMOSTAT
R W
OPERATING SEQUENCE
- SET THERMOSTAT AT LOWEST SETTING.
- TURN ON POWER AND MANUAL GAS VALVE TO UNIT.
- SET THERMOSTAT AT DESIRED SETTING.
- FIRING RATE IS CONTROLLED BY THE SINGLE STAGE THERMOSTAT.
- BLOWER MOTOR OPERATES FROM FAN TIME DELAY.
REDUND
ANT
GAS V
AL
VE
AL
TERNA
TE
W
.R. OR R
OBER
TSHA
W
BL
P
BK
BR
M
AIN
PIL
O
T
M
C
PV
PIL
O
T
MV
PV-MV
M
AIN
REDUND
ANT
GAS V
AL
VE
HONE
Y
WELL
CONTACTS
FAN TD
1 3
(SEE NOTES)
DISCONNECT SWITCH
BK
ON 115/460V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
- ON 208/230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
- USE #14 GA. WIRE FOR LINE AND MOTOR WIRING ON THREE PHASE UNIT.
TO PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.
- LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SIZE SHOULD BE OF A SIZE
A TEMPERATURE RATING OF AT LEAST 105 DEGREES C., EXCEPT FOR ENERGY
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
- CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
- DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED
- THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT:
- THE FOLLOWING CONTROLS ARE SUPPLIED BY REZNOR FOR FIELD INSTALLATION:
FOR 115/460V. UNITS USE BLACK AND YELLOW LEADS.
FOR 208V. UNITS USE BLACK AND RED LEADS (CAP YELLOW).
FOR 230V. UNITS USE BLACK AND YELLOW LEADS (CAP RED).
THERMOSTAT
CUTOFF OR SENSOR LEAD WIRE WHICH MUST BE 150 DEGREES C.
- USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.
BY OTHERS: BLOWER RELAY
NONE
NOTE
USE DUAL ELEMENTS TIME DELAY FUSES AND SIZE ACCORDING TO 1.25
TIMES THE MAXIMUM TOTAL INPUT AMPS.
- WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH
- DISCONNECT SWITCH IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.
FIRING SEQUENCE:
- ON A CALL FOR HEAT BY THE THERMOSTAT.
- THE VENTER MOTOR IS ENERGIZED AFTER A 15 SECOND (APPROX.)
TIME DELAY.
- VENTER FLOW SWITCH SWITCHES FROM N.C. TO N.O. CONTACTS ENERGIZING
FLAME ON EACH OPERATING CYCLE. THE SENSING PROBE PROVES THE
PRESENCE OF THE PILOT FLAME AND ENERGIZES THE SAFETY SWITCH
PORTION OF THE CONTROL. THE SWITCH ACTION DE-ENERGIZES THE
SPARK GAP AND ENERGIZES THE MAIN VALVE. THE MAIN GAS IGNITES
AND UNIT FIRES AT FULL RATE.
THE PILOT GAS VALVE AND SPARK GAP TO PRODUCE A PILOT
Y
BL
IGNITION
CONTROLLER PROBE
GND
SPARK
FLAME SENSING
MV/PV
MV
SENSE
TH
PV
24V GND
BR
GND BURNER
G
UNIT CHASSIS
GROUND
6
7
8
9
10
11
12
19
20
21
22
23
24
25
26
27
28
29
30
31
32
13
- IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION,
THE SAFETY SWITCH CLOSES THE MAIN VALVE. IF THE PILOT IS
NOT ESTABLISHED WITHIN 120 SEC. THE UNIT LOCKS OUT FOR
ONE HOUR, UNLESS IT IS RESET BY INTERRUPTING POWER TO
THE CONTROL CIRCUIT. (SEE LIGHTING INSTRUCTIONS)
M1(4) M2(5)
RELAY CONTACTS
VENTER TIME DELAY
M3(1) M4(3)
VENTER TIME DELAY
RELAY CONTACTS
7.4 Typical Wiring
Diagrams
Field Control Wiring - Length and Gauge
Total Wire
Length
Distance from
Unit to Control
Minimum Recommended
Wire Gauge
150ft (46M) 75ft (23M) #18 gauge
250ft (76M) 125ft (38M) #16 gauge
350ft (107M) 175ft (53M) #14 gauge
Control
Wiring