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C7027A, C7035, C7044A, C7927A MINIPEEPER® ULTRAVIOLET FLAME DETECTORS
60-2026—11 4
Fig. 4. Installation dimensions of C7927A1016 (U.S.A. version) and C7927A1008 (European version) in in. (mm).
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced, flame
safeguard control technician.
4. After installation is complete, check out product
operation as provided in these instructions.
Disconnect power supply before beginning installation to
prevent electrical shock and equipment damage. All wiring
must comply with applicable electrical codes, ordinances
and regulations. Use NEC Class 1 wiring.
IMPORTANT
Ultraviolet radiation sensing tubes have a life
expectancy of 40,000 hours of continuous use within
the flame detector's specified ambient temperature
and voltage ratings. Wearout of an ultraviolet
radiation sensing tube results in failure of the UV
sensor to properly discriminate between flame
conditions.
The C7027A, C7035A and C7044A Flame Detectors
should only be used on burners that cycle on/off
periodically or, in the absence of cycling, are
periodically checked for proper operation.
Recommended industry standards for the frequency
of sensor checks, either through cycling (employing
safe-start check methods) or periodic maintenance,
vary between once every ten seconds and once
every week, depending on the standard used and
the application needs.
Consult the equipment manufacturer or the
governing standard for recommendations about
frequency of checks.
Controls incorporating safe-start checks, and
sensors and controls employing constant check
means are available from Honeywell. See your
Honeywell representative for specific information.
4 FOOT (1.2 METER)
LEADWIRES (2)
M17783
3-1/4 (82)
3-3/4 (95)
1
(25)
C7927A1016
3
-11/16
(94)
1 (25)
6-1/2 FT. (1.98M)
M1778
4
C7927A1008