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Suburban DynaLine Owner's Manual 04/2021 Rev.4
All external wiring must comply with local codes or national electrical codes.
It is recommended that the wiring be on a separate permanent line electrical circuit. The electrical circuit must be protected using dual 15
amp fuse or HACR type circuit breaker.
In the U.S.A.,
the unit when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with
the latest edition of National Electrical Code ANSI/NFPA No. 70. Proper operation of this unit is dependent on adequate earth ground. If
the installation is made using gas piping of any material other than metal pipe, then adequate steps must be taken to assure adequate
earth ground.
In Canada,
the unit must be electrically connected and grounded in accordance with local codes or in the absence of local codes with the
current CSA C22.1 Canadian Electrical Code.
24 VAC EMERGENCY POWER CONNECTION (COMPRESSOR LOCK-OUT)
Two 1/4” male terminals labeled “PWR DOWN” are available on the module board. If 24 VAC is applied to these terminals, the compressor
and condenser fan operation are disabled. During a call for cooling, the indoor blower will run and the “SERVICE SYSTEM” light will be on.
1.
Remove the display panel (save the 5 screws for re-use (See Figure 13).
2.
Route wiring from an external 24 VAC source through the bushing in the base of the unit.
3.
Terminate two wires with 1/4” female pre-insulated terminals.
4.
Connect wires to the “PWR DOWN” terminals on the module board (See wiring diagram).
5.
Replace the display panel.
OPERATING INSTRUCTIONS
A. HEAT MODE - Initial Lighting Instructions (See Figure 13)
NOTE
: During initial firing of this furnace, a burn-off of excess paint and oils remaining from manufacturing process may cause “smoking”
for 5 - 10 minutes.
NOTE
: If your unit has the optional air discharge package installed, Suburban Applied Products recommends the room air blower be
operated on high (Select high fan speed).
1.
Open the manual shut-off valve. The valve is fully open when the handle is level or parallel to the gas line. Never attempt to operate
unit with manual valve partially closed.
2.
Depress “System” key pad until heat lamp is illuminated.
3.
Depress “Fan” key pad until desired speed lamp is illuminated.
4.
Set thermostat to desired setting by depressing temperature indicating arrows until desired temperature is displayed.
5.
If the thermostat circuit is closed at the setting chosen in step 4, the ignition sequence begins.
6.
After ignition, the operation of the unit will be controlled automatically by the thermostat.
FAN
LOW
HIGH
STANDBY
SYSTEM
COOL
FAN ONLY
HEAT
SET
COOLER
WARMER
Figure 14
TO SHUT DOWN FOR AN EXTENDED PERIOD OF TIME
1.
Depress “System” key pad until stand by lamp is illuminated.
2.
Close manual shut-off valve.
FREEZE PROTECTION
This unit has freeze protection activated when operating from the on-board controls. This can be turned off with the following instructions
1.
Depress "SYSTEM" and "WARMER" buttons simultaneously and release. "Sr" will display.
2.
Depress "WARMER", "COOLER" and "FAN" buttons simultaneously. "nF" will display when freeze protection is off and "FP" will
display when freeze protection is on.
NOTE:
Freeze protection is not active on-board when using a remote wall-mount thermostat. Select a thermostat with freeze protection
if a remote wall-mount thermostat is desired for operation with freeze protection.
SEQUENCE OF NORMAL OPERATION - HEAT MODE
1.
When heat is required, the thermostat closes and energizes the combustion air motor.
2.
As the blower reaches approximately 90% of the normal RPM, the pressure created by the combustion air motor causes the
diaphragm in the pressure switch to move, closing the contacts. This completes the electrical circuit to the input of the module
board and a 10 second warm-up period for the glo-bar is established. During the warm up period, the glo-bar comes on for 7
seconds, then the valve opens. The glo-bar remains on another 3 seconds after the valve opens and then goes off. When the valve
opens, it will remain open for 6 seconds. Gas will flow to the burner and be ignited by the glo-bar.
