Fossil Fuel Applications; Line Voltage Accessories (Electronic Air Cleaner And Humidifier); 24 Volt Humidifier; Gas Supply And Piping - Amana MVM97 Installation Instructions Manual

To install/connect a dehumidistat:
1. Turn OFF power to furnace.
2. Secure the dehumidistat neutral wire (typically the
white lead) to the terminal marked "DEHUM" on the
furnace integrated control module.
3. Secure the dehumidistat hot wire (typically the black
lead) to the terminal marked "R" on the furnace inte-
grated control module.
4. Secure the dehumidistat ground wire (typically the
green lead) to the ground screw on the furnace junc-
tion box. NOTE: Ground wire may not be present on
all dehumidistats.
5. If the condenser is a straight cooling unit, install a
jumper from Y1 to 0 on the furnace board.
6. Turn ON power to furnace.
To enable the dehumidify function on the integrated con-
trol module, set the dehumidification ENABLE DIP switch
from OFF to ON.
Once the switch is set, the dehumidify function is enabled
during a combination call for cooling (T-Stat) and dehu-
midification (DEHUM-Stat). Refer to the DIP switch chart
in the back section of this manual.

Fossil Fuel Applications

This furnace can be used in conjunction with a heat pump
in a fossil fuel application. A fossil fuel application refers
to a combined gas furnace and heat pump installation
which uses an outdoor temperature sensor to determine
the most cost efficient means of heating (heat pump or
gas furnace).
Strictly follow the wiring guidelines in the fossil fuel kit
installation instructions. All furnace connections must be
made to the furnace control board and the "FURNACE"
terminal strip on the fossil fuel control board.
Line Voltage Accessories (Electronic Air Clean-
er and Humidifier)
The furnace control board is equipped with line voltage
accessory terminals for controlling power to an electronic
air cleaner.
HIGH VOLTAGE !
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
.
WIRING
The accessory load specifications are as follows. (The
furnace control board also has a set of dry contacts for
humidifier connection.)
Humidifier
Electronic Air Cleaner
WARNING
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
Turn OFF power to the furnace before installing any
accessories. Follow the humidifier or air cleaner manu-
facturers' instructions for locating, mounting, grounding,
and controlling these accessories. Accessory wiring con-
nections are to be made through the 1/4" quick connect
terminals provided on the furnace integrated control
module. The Electronic air cleaner hot terminal is iden-
tified as EAC. It is necessary to remove the protective tab
on the board cover to access the EAC Terminal. The EAC
neutral terminal is identified as Neutral. A line voltage
humidifier may be connected between one of the HUM
contacts and neutral. The other HUM contact must be fed
from the L1 terminal.
All field wiring must conform to applicable codes. Con-
nections should be made as shown in Figure 35.
NEUTRAL
L1
Accessories Wiring
If it is necessary for the installer to supply additional line
voltage wiring to the inside of the furnace, the wiring
must conform to all local codes, and have a minimum
temperature rating of 105°C. All line voltage wire splices
must be made inside the furnace junction box.
The furnace control board HUM (dry contacts) are closed
whenever the inducer is energized in a non-communicat-
ing installation. When used with a CTK02**, CTK03 or
CTK04 communicating thermostat, the HUM terminals are
closed whenever there is a call for humidity when this
feature is enabled in the communicating thermostat. In
the CTK03AB & CTK04** humidity must be enabled in he
main menu, se up in the Installer menu & ComfortNet
user menu. The integrated control module electronic
air cleaner terminals (EAC) are energized with 115 volts
whenever the circulator blower is energized.

24 Volt Humidifier

A 24 volt humidifier can be powered by feeding one of
the HUM terminals with a field installed wire from the R
terminal.
AUX OUT
AUX IN
Figure 35