White Rodgers 50A55-285 Manual De Usuario
2
SPECIFICATIONS
ELECTRICAL RATINGS [@ 77
°
F (25
°
C)]:
Input Voltage: 25 VAC 50/60 Hz
Max. Input Current @ 25 VAC: 0.45 amp
Max. Input Current @ 25 VAC: 0.45 amp
Relay Load Ratings:
Valve Relay:
1.5 amp @ 25 VAC 50/60 Hz 0.6 pf
Ignitor Relay:
6.0 amp @ 120 VAC 50/60 Hz
(resistive)
(resistive)
Inducer Relay:
2.2 FLA–3.5 LRA @ 120 VAC
Circulator Relay:
14.5 FLA–25.0 LRA @ 120 VAC
Flame Current Requirements:
Minimum current to insure flame detection: 1
µ
a DC*
Maximum current for non-detection: 0.1
µ
a DC*
Maximum allowable leakage resistance: 100 M ohms
*Measured with a DC microammeter in the flame probe lead
OPERATING TEMPERATURE RANGE:
-40
°
to 175
°
F (-40
°
to 80
°
C)
HUMIDITY RANGE:
5% to 93% relative humidity (non-condensing)
MOUNTING:
Surface mount multipoise
Timing Specs: (@ 60 Hz**)
maximum
Flame Establishing Time:
0.8 sec
Flame Failure Response Time:
2.0 sec
** At 50 Hz, all timing specifications should be increased by
20%
Gases Approved: Natural, Manufactured, Mixed, Liquified
Petroleum, and LP Gas Air Mixtures are all approved for use.
Petroleum, and LP Gas Air Mixtures are all approved for use.
TIMING SPECIFICATIONS
(All times are in seconds, unless noted otherwise)
PRE-PURGE
INITIAL IGNITOR WARM-UP
(1st 64 attempts)
(1st 64 attempts)
MINIMUM IGNITOR WARM-
UP
UP
MAXIMUM IGNITOR WARM-
UP
UP
IGNITION ACTIVATION
PERIOD
PERIOD
TRIAL FOR IGNITION
PERIOD
PERIOD
RETRIES
VALVE SEQUENCE PERIOD
INTERPURGE
POST-PURGE
LOCKOUT TIME
HEAT DELAY-TO-FAN-ON
HEAT DELAY-TO-FAN-OFF*
COOL DELAY-TO-FAN-ON
COOL DELAY-TO-FAN-OFF
AUTO RESET
HUMIDIFIER
ELECTRONIC AIR
CLEANER
CLEANER
0
17
5
21
3
6
2 times
12
60
15
300
30
60/90/
120/180
5
45
60 minutes
YES
YES
50A55-285
* These times will vary depending on option switch
position. The control is factory-set at 90 sec.
HEAT delay-to-fan-off. See OPERATION section
for further information.
HEAT delay-to-fan-off. See OPERATION section
for further information.