65
Int
eg
rat
ed
Fu
rn
ace
Co
ntr
ol
START-UP AND SEqUENCE OF OPERATIONS
6. LINE VOLTAGE CONNECTIONS (120VAC, L1)
Four ¼” spade terminals are provided for internal
connections and accessories.
7. INDUCED DRAFT MOTOR (INDUCER) OUTPUT(P3)
This three-pin Mate-n-Lok style connector provides
power to the inducer.
8. NEUTRAL TERMINALS (NEUTRAL)
Four ¼” spade terminals are provided for internal
connections and accessories.
9. ELECTRONIC AIR CLEANER (EAC.) OUTPUT (T3)
This output is used to energize an electronic air
cleaner. The output will provide up to 1.0 amp at 115
VAC.This output is energized any time the blower
motor is above the airflow CFM values specified
below. Airflow below these values is not considered to
be enough for a typical electronic air cleaner to
perform properly.
For ½ HP motors - Electronic air cleaner is energized
any time the blower is above 500 CFM
For ¾ HP motors - Electronic air cleaner is energized
any time the blower is above 600 CFM
Continuous fan speeds are selectable and some
lower fan speeds may not deliver enough airflow to
operate an electronic air cleaner. The IFC determines
the minimum airflow necessary to operate an
electronic aircleaner and will not turn on the electronic
air cleaner unless the airflow is high enough for the
EAC.
10. HUMIDIFICATION (T3) AND DEHUMIDIFICATION
HUMIDIFIER – The humidifier contacts (labeled
“HUM” (2)) are “dry” contacts on the I.F.C. This means
that the terminals are connected directly to the
contacts of a board-mounted relay. The coil of the
relay is controlled by the microprocessor of the IFC.
The coil is engaged any time the heat speed blower is
engaged and (1) 24VAC is present on the thermostat
terminal of the IFC labeled “HUM STAT” or (2) a
communicating thermostat with humidification and
dehumidification capability is installed with call for
humidification present. (See Figure 47 for location of
humidification/dehumidification inputs on furnace
control.)
An optional 24VAC humidistat can be installed as shown
in Figures 49 thru 52. With the optional humidistat, two
separate conditions must be met before humidification can
begin.
FIGURE 48
ELECTRONIC AIR CLEANER AND HUMIDIFIER TERMINALS
ST-A1194-77-00
Содержание (-)98VA060M317USA
Страница 12: ...Field Conversions FIELD CONVERSIONS 12 ...
Страница 13: ...FIELD CONVERSIONS Field Conversions 13 SEE NExT PAGE FOR APPLICABLE CONFIGURATIONS ...
Страница 15: ...Field Conversions 15 ...
Страница 16: ...Field Conversions ST A1194 68 00 16 ...
Страница 17: ...Field Conversions 17 ...
Страница 18: ...Field Conversions 18 ...
Страница 43: ...43 CONDENSATE DRAIN CONDENSATE DRAIN DRAIN NEUTRALIzER cont Condensate Drain FIGURE 29 ST A1194 70 00 ...
Страница 86: ...86 Timing Diagram TIMING DIAGRAM TABLE 16 TIMING DIAGRAM FOR A CALIBRATION GAS HEAT SEqUENCE ST A1240 03 00 ...
Страница 87: ...87 TIMING DIAGRAM TABLE 17 TIMING DIAGRAM FOR NON CALIBRATION GAS HEAT SEqUENCE Timing Diagram ST A1240 04 00 ...
Страница 92: ...92 Diagnostics TABLE 19 R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS ...
Страница 93: ...93 TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS Diagnostics ...
Страница 94: ...94 Diagnostics TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS ...
Страница 95: ...95 TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS Diagnostics ...
Страница 96: ...96 Diagnostics TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS ...
Страница 97: ...97 TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS Diagnostics ...
Страница 98: ...98 Diagnostics TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS ...
Страница 99: ...99 TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS Diagnostics ...
Страница 100: ...100 Diagnostics TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS ...
Страница 101: ...101 TABLE 19 continued R98V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS Diagnostics ...
Страница 105: ...105 FIGURE 67 MODULATING ECM FURNACE WIRING DIAGRAM Troubleshooting ...
Страница 106: ...106 ...
Страница 107: ...107 ...
Страница 108: ...108 CM 0717 ...