Honeywell R7795A Manual page 3

ELECTRICAL RATINGS:
Voltage and Frequency: 120 Vac, (+10, -15%), 50/60 Hz.
Power Consumption:
R7795A,C: 17 VA (maximum).
R7795B,D: 15 VA (maximum).
TERMINAL RATINGS:
Terminal Load
5 Pilot Valve
18 Ignition
6, 7 Main Fuel
Valve(s)
8 Fan or
burner motor locked rotor.
9 Alarm
NOTE: Allowable inrush can be up to ten times the pilot
duty rating.
Example:
Pilot duty rating = 125 VA. At 120V, running current is
125/120 = 1.05A.
Maximum allowable inrush is 10 times 1.05 = 10.5A.
AMBIENT TEMPERATURE RANGES:
Operating: -40° F [-40° C] to +135° F [+57° C].
FLAME FAILURE RESPONSE: 3 seconds nominal.
DIMENSIONS: Approximately 5 x 5 x 5-1/4 in. [127 x 127
x 133.5 mm].
WEIGHT: 2.0 lb [0.9 kg].
MOUNTING: Two captive screws in device for mounting
onto Q795A Subbase (ordered separately).
Fig. 1—R7795 System components.
Q795A WIRING SUBBASE
Maximum Rating
at 120 Vac
125 VA pilot duty.
360 VA.
125 VA pilot duty or
25 VA pilot duty plus
one or more motorized
valves with a total rating
of 500 VA opening,
250 VA holding.
9.8A full load; 58.8A
1.0A.
APPROVALS:
Underwriters Laboratories Inc. listed: File No. MP268,
Guide No. MCCZ.
Canadian Standards Association certification: pending.
Factory Mutual approved: Report No. J.I. OR4A2.AF
ACCESSORIES (See Fig. 1):
W136A Test Meter (includes 196146 Meter Connector
Plug).
196146 Meter Connector Plug for older W136A Test
Meters.
123514A Flame Simulator for rectification systems.
123514B Flame Simulator for ultraviolet systems.
Q624A Solid State Spark Generator.
Q795A Wiring Subbase.
ST795A Plug-in Purge Timer (models available with
1.5, 7, 10, 30, 60, and 90 second timings).
FSP5004A with adapter for operational check of the
R7795.
R1061012 Ignition Cable for ignition installations in
high temperature environments; rated at 350° F
[177° C] for continuous duty, and up to 500° F
[260° C] for intermittent use; tested to 20,000 Vrms.
R1239001 High Tension Ignition Cable for ignition
installations in a contaminating environment; very
resistant to severe conditions of oil, heat, and corona.
Tested to withstand high voltages up to 25,000 Vrms
in a salt bath for one minute without breakdown.
Rated at 200° F [93° C] for continuous duty, and up
to 250° F [177° C] for intermittent use.
R1298020 Cable for flame detector (F leadwire) instal-
lations in a high temperature environment; rated up
to 400° F [204° C] for continuous duty; tested for
operation up to 600V and breakdown up to 7500V.
198365A Remote Reset Cover. Heavy duty cover with
remote reset assembly; 120 Vac, 50/60 Hz solenoid
will only fit R7795 with a series number of 1.
198365B Remote Reset Cover. Heavy duty cover with
remote reset assembly; 120 Vac, 50/60 Hz solenoid
will only fit R7795 with a series number of 2.
ST795A
PREPURGE
TIMER
3
R7795A,B,C,D
SPECIFICATIONS
COVER
M12389
66-2001—2