Accessories; Thermostats; Alternate Power Supplies; Electrical Data - International comfort products F96VTN Installation Instructions Manual

maintenance could cause this fuse to blow. If fuse replacement is
required, use ONLY a 3- -amp. fuse of identical size. See Fig. 39.

Thermostats

A single stage heating and cooling thermostat can be used with the
furnace. The furnace control board CPU will control the furnace
and outdoor unit staging. A two stage heating and cooling
thermostat can also be used to control the staging. For two stage
thermostat control of the furnace staging, turn SW1-2 ON at the
furnace control board. For two stage thermostat control of a 2-stage
outdoor unit, remove the ACRDJ jumper from the furnace control
board. Refer to typical thermostat wiring diagrams and the
Sequence of Operation section for additional details. Consult the
thermostat installation instructions for specific information about
configuring the thermostat. See Fig. 39 and 40.

Accessories

(See Fig. 37 and 39.)
1. Electronic Air Cleaner (EAC)
Connect an accessory Electronic Air Cleaner (if used) using
1/4- -in. female quick connect terminals to the two male
1/4- -in. quick- -connect terminals on the control board
marked EAC- -1 and EAC- -2. The terminals are rated for
115VAC, 1.0 amps maximum and are energized during
blower motor operation.
2. Humidifier (HUM)
The HUM terminal is a 24 VAC output, energized when the blower
is operating during a call for heat.
Connect an accessory 24 VAC, 0.5 amp. maximum humidifier (if
used) to the ¼- -in. male quick- -connect HUM terminal and
COM- -24V screw terminal on the control board thermostat strip.
VOLTS---
HERTZ---
PHASE
FURNACE SIZE
0401410A 115--- 60--- 1
0401712A 115--- 60--- 1
0601412A 115--- 60--- 1
0601714A 115--- 60--- 1
0801716A 115--- 60--- 1
0802120A 115--- 60--- 1
1002120A 115--- 60--- 1
1202422A 115--- 60--- 1
* Permissible limits of the voltage range at which the unit operates satisfactorily.
# Unit ampacity = 125 percent of largest operating component's full load amps plus 100 percent of all other potential operating components' (EAC, humidifier,
etc.) full load amps.
Time ---delay type is recommended.
{
Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop.
}
1
Low Amp Kit (NAHA00101PC allows select furnaces to be installed with a 15 Amp Breaker and 14 AWG wire within the listed wire length. Affected data
shown as Default Value/Value with Lower Amp Kit.
Fig. 37 - - Field- -supplied Isolation Relay for Humidifiers with Internal Power Supply
440 01 4800 01
Table 11 – Electrical Data
OPERATING VOLTAGE
MAXIMUM
RANGE*
Maximum* Minimum*
127 104
127 104
127 104
127 104
127 104
127 104 14.7/11.2
127 104 14.8/11.3
127 104
To Humidifier Leads
To Humidifier Leads
Specifications subject to change without notice.
NOTE: If the humidifier has its own 24 VAC power supply, an
isolation relay may be required. Connect the 24 VAC coil of the
isolation relay to the HUM and COM/24V screw terminal on the
control board thermostat strip. See Fig. 37.
3. Communication Connector
The furnace can only be controlled by a single or two- -stage
thermostat. A Communicating User Interface will not oper-
ate this furnace when connected to the Communication
Connector. The Communication Connector on the furnace
control board is only for communication between furnaces
twinned together using a factory accessory twinning kit.
See Fig. 39.

Alternate Power Supplies

This furnace is designed to operate on utility generated power
which has a smooth sinusoidal waveform. If the furnace is to be
operated on a generator or other alternate power supply, the
alternate power supply must produce a smooth sinusoidal
waveform for compatibility with the furnace electronics. The
alternate power supply must generate the same voltage, phase, and
frequency (Hz) as shown in Table 11 or the furnace rating plate.
Power from an alternate power supply that is non-sinusoidal may
damage the furnace electronics or cause erratic operation.
Contact the alternate power supply manufacturer for specifications
and details.
MINIMUM
UNIT
UNIT WIRE SIZE
AMPS AMPACITY#
7.0 9.7
7.2 9.8
7.1 9.7
10.9 14.6
10.0 13.4
19.3/14.0 12/14
1
19.4/15.0 12/14
1
12.6 16.7
To HUM Terminal On
Furnace Control Board
24 V
Coil
To Com/24V Screw Terminal
on Thermostat Strip
MAXIMUM
WIRE LENGTH
AWG FT (M)}
14 38 (11.7)
14 37 (11.5)
14 38 (11.7)
14 25 (7.7)
14 27 (8.4)
29/24 (8.8/7.3 )
1 1 1
29/24 (8.8/7.3 )
1 1 1
12 34 (10.5)
MAXIMUM
FUSE OR
CKT BKR
AMPS{
15
15
15
15
15
20/15
1
20/15
1
20
A11157
35