13
441 01 5001 00
·
Two--stage regulation of LP gas is recommended.
Final Check
·
Test all pipe for leaks.
·
If orifices where changed, make sure they are checked for
leaks.
·
During pressure testing of gas piping system, observe the fol-
lowing:
a. If test pressure does not exceed
1
/
2
²
PSIG, isolate the fur-
nace by closing its individual manual shutoff valve.
b. If test pressure exceeds
1
/
2
²
PSIG, the furnace and its indi-
vidual shutoff valve must be disconnected from the gas sup-
ply system.
·
To check for leaks apply soap suds or a liquid detergent to
each joint. Bubbles forming indicate a leak.
·
Do not use an open flame to test for gas leaks. Fire or explo-
sion could occur.
·
Correct even the smallest leak at once.
FIRE OR EXPLOSION HAZARD.
Liquid petroleum (LP) gas is heavier than air and
will settle and remain in low areas and open
depressions.
An open flame or spark can result in death, personal
injury and/or property damage.
Thoroughly ventilate area and dissipate gas. Do
NOT use a match or open flame to test for leaks, or
attempt to start up furnace before thoroughly
ventilating area.
!
7. Electrical Wiring
Electrical shock hazard.
Turn OFF electrical power at fuse box or service
panel before making any electrical connections
and ensure a proper ground connection is made
before connecting line voltage.
Failure to do so can result in death, personal injury
and/or property damage.
!
Power Supply Wiring
The furnace
MUST
be electrically wired and grounded in accor-
dance with local codes, or in the absence of local codes, the appli-
cable national codes.
Field wiring connections must be made inside the furnace connec-
tion box. A suitable strain relief should be used at the point the
wires exit the furnace casing.
Copper conductors shall be used. Line voltage wires should be
sized for the input amps stated on the rating plate. Furnace must
be connected to its own separate circuit.
Thermostat
Thermostat location has an important effect on the operation of
the unit. Follow instructions included with thermostat for correct
mounting and wiring.
Low voltage connections to furnace must be made on terminal
board to fan control. (See
Figure 9
)
If cooling is used, the
Y
from the thermostat must be connected to
the control board
Y
to energize cooling blower speed.
Set thermostat heat anticipator in accordance with the
Technical
Support Manual
.
Optional Equipment
All wiring from furnace to optional equipment
MUST
conform to lo-
cal codes or, in the absence of local codes, the applicable national
codes. Install wiring in accordance with manufacturer’s instruc-
tions.
Humidifier/Electronic Air Cleaner
The furnace is wired for humidifier and/or electronic air cleaner
connection.
CAUTION
Do NOT exceed 220V/0.4 amp. maximum current load
for both the EAC terminal and the HUM terminal com-
bined.
NOTE:
The humidifier will be powered when the furnace is fired
and the circulating air blower comes on. The electronic air cleaner
will be powered anytime the thermostat calls for air movement.
However, the electronic air cleaner is
NOT
energized during con-
tinuous fan operation controlled by the electronic fan control.
Figure 9
Electrical Connections
25--24--33
NOTE: 220 VAC/50Hz/single--phase
Operating voltage range*: 242 max, 198 min.
* Permissible limits of voltage at which unit will operate satisfactorily
220V/50Hz.
