Manual 2100-365
Page 33
30. SEQUENCE OF OPERATION –
HEATING
On a call for heat from the thermostat, the induced
draft blower is energized. Once sufficient draft is
established, the pressure switch contacts close and the
ignition system is energized. The direct spark ignitor
will be energized allowing gas to flow. At the same
time the main valve is energized, a 30 second blower
delay timer is activated.
After this delay, the heating speed blower relay
energizes. The blower will begin operating and remain
in operation until the set delay time after the call for
heat has been satisfied. (See Table 15 for selectable
blower off time delays.) This timing sequence
guarantees blower on, blower off operation.
This unit is equipped with a flame rollout switch which
is wired in series with the control circuit. This is a
manual reset switch and is used for the purpose of
preventing possible fire hazard in the event of a system
malfunction. If this switch has opened the control
circuit, there could be a possible system malfunction.
Some of the conditions that might cause a rollout to
occur are blockage or sooting of primary heat
exchanger, overfiring of furnace due to improper main
burner orifices or incorrect manifold pressure,
insufficient combustion air, or installation deficiencies
with respect to return air duct design or sizing.
Once the problem has been resolved, reset the switch
by pressing down on the reset button on top of the
switch. See Figure 17 for additional information.
31. SEQUENCE OF OPERATION –
COOLING
On a call for cooling from the room thermostat, the
high speed blower relay will be energized as well as the
compressor contactor. Following termination of the
cooling cycle, the blower motor will continue to run for
one minute.
See Figure 17 for additional information.
The unit may be equipped with a low ambient control
for lower outdoor temperature operation in the cooling
mode. If equipped with this optional control the
condenser fan will not operate immediately upon
compressor start-up, and will cycle on and off until the
condensing pressure remains above PSIG.
FIGURE 17
SEQUENCE OF OPERATION
ELECTRONIC BLOWER CONTROL
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Summary of Contents for WG241
Page 12: ...Manual 2100 365 Page 9 FIGURE 2 MOUNTING INSTRUCTIONS FOR WG24 WG30 AND WG36 MIS 1681...
Page 13: ...Manual 2100 365 Page 10 FIGURE 2A MOUNTING INSTRUCTIONS FOR WG42 WG48 AND WG60 MIS 1472...
Page 16: ...Manual 2100 365 Page 13 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS MIS 1474...
Page 22: ...Manual 2100 365 Page 19 FIGURE 11 LOW VOLTAGE WIRING MIS 1719...
Page 23: ...Manual 2100 365 Page 20 FIGURE 12 GAS PIPE CONNECTION MIS 1683...
Page 33: ...Manual 2100 365 Page 30 26 LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 15 INSTRUCTION LABEL...
Page 50: ...Manual 2100 365 Page 47 WG241 A 230 208 60 1...
Page 51: ...Manual 2100 365 Page 48 WG241 A 230 208 60 1...
Page 52: ...Manual 2100 365 Page 49 WG241 B 230 208 60 3...
Page 53: ...Manual 2100 365 Page 50 WG241 B 230 208 60 3...
Page 54: ...Manual 2100 365 Page 51 WG241 C 460 60 3...
Page 55: ...Manual 2100 365 Page 52 WG241 C 460 60 3...
Page 56: ...Manual 2100 365 Page 53 WG301 A WG361 A 230 208 60 1...
Page 57: ...Manual 2100 365 Page 54 WG301 A WG361 A 230 208 60 1...
Page 58: ...Manual 2100 365 Page 55 WG301 B WG361 B 230 208 60 3...
Page 59: ...Manual 2100 365 Page 56 WG301 B WG361 B 230 208 60 3...
Page 60: ...Manual 2100 365 Page 57 WG301 C WG361 C 460 60 3...
Page 61: ...Manual 2100 365 Page 58 WG301 C WG361 C 460 60 3...
Page 62: ...Manual 2100 365 Page 59 WG422 A 230 208 60 1...
Page 63: ...Manual 2100 365 Page 60 WG422 A 230 208 60 1...
Page 64: ...Manual 2100 365 Page 61 WG422 B 230 208 60 3...
Page 65: ...Manual 2100 365 Page 62 WG422 B 230 208 60 3...
Page 66: ...Manual 2100 365 Page 63 WG422 C 460 60 3...
Page 67: ...Manual 2100 365 Page 64 WG422 C 460 60 3...
Page 68: ...Manual 2100 365 Page 65 WG481 A WG601 A 230 208 60 1...
Page 69: ...Manual 2100 365 Page 66 WG481 A WG601 A 230 208 60 1...
Page 70: ...Manual 2100 365 Page 67 WG481 B WG601 B 230 208 60 3...
Page 71: ...Manual 2100 365 Page 68 WG481 B WG601 B 230 208 60 3...
Page 72: ...Manual 2100 365 Page 69 WG481 C WG601 C 460 60 3...
Page 73: ...Manual 2100 365 Page 70 WG481 C WG601 C 460 60 3...