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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 service technician.
4. Disconnect the power supply before beginning
installation to prevent electrical shock and equipment
damage. More than one disconnect may be involved.
5. All wiring must comply with applicable local electrical
codes, ordinances, and regulations.
6. All wiring must be NEC Class 1 (Line Voltage).
7. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Disconnect power supply before beginning installation
to prevent electrical shock and equipment damage.
More than one disconnect may be involved.
Follow the equipment manufacturer instructions if available;
otherwise, proceed as follows below.
MOUNTING
NOTE: For installation dimensions, see Fig. 1 and 2.
1. Place the subbase in a location within the ambient
temperature rating of the 7800 SERIES Relay Module
and S7830A being used. Refer to the appropriate
Instructions.
2. Mount the subbase in any position except horizontally
with the bifurcated contacts pointing down. The
standard vertical position is recommended.
3. Select a wall, burner or electrical panel location. Or
mount the Q7800 directly in the control cabinet. Be sure
to allow adequate clearance for servicing, installation,
access or removal of the 7800 SERIES Relay Module,
S7830A, Keyboard Display Module, Run/Test switch,
flame amplifier signal voltage probes, electrical signal
voltage probes and electrical field connections.
IMPORTANT
Do not mount the wiring subbase horizontally with
the bifurcated contacts pointing down.
4. For surface mounting, use the back of the subbase as a
template to mark the four screw locations. Drill the pilot
holes.
5. Insert the mounting screws using four no. 6 screws
tightened securely.
7800 SERIES Q7800A,B 22-TERMINAL UNIVERSAL WIRING SUBBASE
WIRING
1. Refer to the equipment manufacturer's wiring
information and the appropriate 7800 SERIES Relay
Module or S7830A Specifications for correct subbase
wiring.
2. Provide overload protection and disconnect means as
required. Disconnect the power supply from the main
disconnect before beginning installation to prevent
electrical shock and equipment damage. More than one
disconnect may be involved.
3. All wiring must comply with appropriate electrical
codes, ordinances and regulations. Use NEC Class 1
(Line Voltage) wiring.
4. Recommended wire size and type is to use up to two
no. 14, 16, or 18 copper conductors TTW60C, THW75C
or THHN90C, 600 volt insulation wire for all Line
Voltage terminals. For high temperature installations,
use wire selected for a temperature rating above the
noted maximum operating temperature. The flame
detector leadwires should be moisture resistant.
a.
b.
c.
5. Recommended grounding practices:
a.
b.
5
For the ignition leadwire, use Honeywell
specification no. R1061012 Ignition Cable or
equivalent. (This wire is rated at 350°F (177°C)
for continuous duty, and up to 500°F (260°C) for
intermittent use. It has been tested to 25,000
volts.)
For the flame detector F leadwire, use Honeywell
specification no. R1298020 or equivalent. (This
wire is rated at 400°F (204°C) for continuous duty.
It is tested for operation up to 600 volts and
breakdown up to 7500 volts.)
For ignition installation in a contaminating
environment, use Honeywell specification no.
R1239001 High Tension Ignition Cable or
equivalent. (This wire is resistant to severe
conditions of oil, heat and corona, and is tested to
withstand high voltages up to 25,000 Vrms in a
salt bath for one minute without breakdown. It is
rated at 200°F (93°C) for continuous duty, and up
to 350°F (177°C) for intermittent use.)
Each 7800 SERIES Relay Module or S7830A will
have an earth ground terminal G that must be
grounded to the metal control panel with wire as
short as practical. Each ground wire must be
capable of carrying a fault current equal to the
rating of the protective fuse (20 amperes); a
number 14 copper conductor is adequate.
The earth ground provides a connection between
the subbase and the control panel or the
equipment. The earth ground wire must be
capable of conducting the current to blow the 20A
fuse (or breaker) in event of an internal short
circuit. The 7800 SERIES Relay Module needs a
low impedance ground connection to the
equipment frame which, in turn, needs a low
65-0084—3
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