Installation - Honeywell 7800 Series Manual

!
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
To prevent possible hazardous burner operation,
verification of safety requirememts must be per-
formed each time a control is installed on a burner.
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
marked on the product to make sure the product is suitable
for the application.
3. Installer must be a trained, experienced, flame safe-
guard service technician.
4. After installation is complete, check out the product
operation as provided in these instructions.
! CAUTION
1. Disconnect the power supply before beginning
installation to prevent electrical shock, equip-
ment and control damage. More than one power
supply disconnect may be involved.
2. Wiring connections for the RM7800 are
unique; therefore, refer to Figs. 7, 8, 9, 10, 11,
12, or 13 or the correct Specifications for
proper subbase wiring.
3. Wiring must comply with all applicable codes,
ordinances and regulations.
4. Wiring, where required, must comply with NEC
Class 1 (Line Voltage) wiring.
5. Loads connected to the RM7800 must not ex-
ceed those listed on the RM7800 label or the
Specifications, see Table 1.
6. Limits and interlocks must be rated to simulta-
neously carry and break current to the ignition
transformer, pilot valve, and main fuel valve(s).
7. All external timers must be listed or component
recognized by authorities who have jurisdiction
for the specific purpose for which they are used.
IMPORTANT:
1. For on-off gas-fired systems, some authorities who
have jurisdiction prohibit the wiring of any limit or
operating contacts in series between the flame safe-
guard control and the main fuel valve(s).
2. Two Flame Detectors can be connected in parallel
with the exception of Infrared Flame Detectors
(C7015).
3. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause interfer-
ence to radio communications. It has been tested and
found to comply with the limits for a Class B computing
device of Part 15 of FCC rules which are designed to
provide reasonable protection against such interfer-
ence when operated in a commercial environment.
Operation of this equipment in a residential area may
cause interference; in which case, the users at their
own expense may be required to take whatever mea-
sures are required to correct this interference.
4. This digital apparatus does not exceed the Class B
limits for radio noise for digital apparatus set out in the
Radio Interference Regulations of the Canadian De-
partment of Communications.
HUMIDITY
Install the RM7800 where the relative humidity never
reaches the saturation point. The RM7800 is designed to
operate in a maximum 85% RH continuous, noncondensing,
moisture environment. Condensing moisture may cause a
safety shutdown.
VIBRATION
Do not install the RM7800 where it could be subjected to
vibration in excess of 0.5G continuous maximum vibration.
WEATHER
The RM7800 is not designed to be weather tight. If
installed outdoors, the RM7800 must be protected by an
approved weather-tight enclosure.
MOUNTING WIRING SUBBASE
NOTE: For installation dimensions, see Figs. 1 and 2.
1. Mount the subbase in any position except horizontally
with the bifurcated contacts pointing down. The standard
vertical position is recommended. Any other position de-
creases the maximum ambient temperature rating.
2. Select a location on a wall, burner or electrical panel.
The Q7800 can be mounted directly in the control cabinet. Be
sure to allow adequate clearance for servicing, installation,
access or removal of the RM7800, Expanded Annunciator,
Keyboard Display Module, flame amplifier, flame amplifier
signal voltage probes, Run/Test Switch, electrical signal
voltage probes and electrical field connections.
3. For surface mounting, use the back of the subbase
as a template to mark the four screw locations. Drill the
pilot holes.
4. Securely mount the subbase using four no. 6 screws.
11
RM7800E,G,L,M

INSTALLATION

Installation
65-0117—2