Reznor UDAS Unit Installation Manual - Manual (Page 18)

Page 18
7.0 Electrical
Supply and
Wiring (cont’d)
FIGURE 14A - Typical Wiring Diagram for all Single Stage Model or
Recirculation Models
WD# 185139 REV #4
ALL SINGLE STAGE or RECIRCULATION
MODELS
AG1-CL1 or CL22
VENTER
FAN MOTOR
PRESSURE SWITCH
SPARK GAP
GREEN LED
FIELD CONTROL WIRING
150'
250'
350'
75'
125'
175'
#18 GA. WIRE
#16 GA. WIRE
#14 GA. WIRE
TOTAL WIRE
LENGTH
DISTANCE FROM
UNIT TO CONTROL
MIN. RECOMMENDED
WIRE GUAGE
LED
Y Y
WIRE CONNECTOR
FIELD WIRING
OPTIONAL FACTORY
FACTORY WIRING
DSI CONTROL
FAST FLASH
1 FLASH
2 FLASH
3 FLASH
4 FLASH
STEADY OFF
LED FLASH CODES
NORMAL OPERATION CALL FOR HEAT
IN LOCKOUT FROM FAILED IGNITIONS OR FLAME LOSSES
PRESSURE SWITCH DOES NOT CLOSE WITHIN 30 SECONDS
LIMIT SWITCH OR ROLLOUT SWITCH OPEN
PRESSURE SWITCH IS CLOSED BEFORE VENTER IS ENERGIZED
INTERNAL CONTROL FAULT OR NO POWER
YELLOW LED
FLAME SENSED STEADY ON
SLOW FLASH WEAK FLAME
UNDESIRED FLAME (VALVE OPEN & NO CALL FOR HEAT) FAST FLASH
IND BK
NEUTRAL
W
MOTOR
LED
OK FLAME
G Y
NEUTRAL
BK W
LIMIT CONTROL
R R
R R
FLAME ROLLOUT
R
BR
FLAME
ELECTRODE
FLAME GROUND
P1-8
P1-3
P1-6
P1-5
P1-7
P1-9
BK
W
GAS VALVE
BL BR P1-2
P1-4 BL
24V
115/208/230
Y
BK
BR
R
L1 NEUTRAL NEUTRAL L1 COM SEC
SYSTEM TRANSFORMER
EAC/BLO
W
WIRING
OF VENTER ENERGIZED
VOL
T
BK
AT
O
OR A
TC
3.0 AMP
C
R
W
G
Y
R
W1
TERMINAL
STRIP
R
Y
PR
P3-4
P3-3
P3-2
NORMAL OPERATION NO CALL FOR HEAT STEADY ON
G
G
G
G
G
GRD
SCREW
LINE/1/60
CAPACITOR
(SEE NOTE #6)
CAPACITOR
(SEE NOTE #7)
BR/W
BR
BR
BR/W
SPARK
TRANSFORMER
G
(MODELS 30-125 ONLY)
P3-5
P3-1
WIRING CODE
BLACK - BK
BROWN - BR
RED - R
ORANGE - O
YELLOW - Y
GREEN - G
BLUE - BL
PURPLE - PR
WHITE - W
Y
W
FUSE
(UDAS ONLY)
R
DOOR INTERLOCK
(UDAS ONL
Y)
DISCONNECT
SWITCH
BK
BK
(OPT
CL1) SINGLE ST
AGE
THERMOST
AT
WITH F
AN SWITCH (SET
ANT
. A
T 0.6
AMPS)
R
W
G
WITH F
AN SWITCH (SEE NOTES #8
THRU #10)
(OPT
CL22)
TWO ST
AGE DIGIT
AL
THERMOST
AT
RC
R
R
W2
G
W1
W1
G
W2
OPERATING SEQUENCE
1. SET THERMOSTAT AT LOWEST SETTING, (FAN SWITCH
2. TURN ON MANUAL GAS VALVE.
3. TURN ON POWER TO UNIT.
4. SET THERMOSTAT AT DESIRED SETTING.
5. THERMOSTAT CALLS FOR HEAT, ENERGIZING THE VENTER MOTOR.
6. VENTER PRESSURE SWITCH CLOSES, FIRING UNIT AT FULL RATE.
7. BURNER FLAME IS SENSED, AND IN 30 SECONDS THE FAN
MOTOR IS ENERGIZED.
8. IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION,
THE INTEGRATED CONTROL SYSTEM CLOSES THE MAIN VALVE AND
MUST BE RESET BY INTERRUPTING POWER TO THE CONTROL CIRCUIT
(SEE LIGHTING INSTRUCTIONS).
NOTES
1. THE FOLLOWING CONTROLS ARE FIELD INSTALLED OPTIONS: THERMOSTAT
2. DOTTED WIRING INSTALLED BY OTHERS.
3. CAUTION: IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE
APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL
HAVING A TEMPERATURE RATING OF AT LEAST 105° C. EXCEPT FOR SENSOR
LEAD WIRE, FLAME ROLLOUT AND LIMIT WIRING WHICH MUST BE 150° C.
4. USE 18 GA. WIRE FOR ALL WIRING ON THE UNIT.
5. LINE AND FAN MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO PREVENT
VOLTAGE DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.
6. CAPACITOR IS REMOTE MOUNTED AND INCLUDED ONLY ON 115V MODELS
150-400 AND 208/230V MODELS 100-400.
7. CAPACITOR IS REMOTE MOUNTED AND INCLUDED ONLY ON MODELS 150 - 400.
9. SET FAN SWITCH AT "ON" POSITION FOR CONTINUOUS FAN OPERATION.
AT "AUTO" POSITION.
8. VERIFY JUMPER ON CL22 THERMOSTAT TERMINALS R TO RC.
9. FAN SWITCH OR LOW STAGE OF CL22 THERMOSTAT ENERGIZES THE BLOWER MOTOR.
10. HIGH STAGE OF CL22 THERMOSTAT INITIATES A CALL FOR HEAT.
7.4 Wiring Diagrams