Gas Supply And Piping - Goodman MEC96 Series Instruction Manual

Room
Thermostat
Y2
Y
W
W2
R
G
C
115 Volt Line Connection of Accessories
(Humidifier and Electronic Air Cleaner)
The furnace integrated control module is equipped with line
voltage accessory terminals for controlling power to an op-
tional field-supplied humidifier and/or electronic air cleaner.
The accessory load specifications are noted in the chart
below:
Humidifier
Electronic Air Cleaner
Turn OFF power to the furnace before installing any acces-
sories. Follow the humidifier or air cleaner manufacturers'
instructions for locating, mounting, grounding, and controlling
these accessories. Accessory wiring connections are to be
made through the 1/4" quick connect terminals provided on
the furnace integrated control module. The humidifier and
electronic air cleaner hot terminals are identified as HUM
and EAC. The humidifier and electronic air cleaner neutral
terminals are identified as NEUTRAL. All field wiring must
conform to applicable codes. Connections should be made
as shown.
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 integrated control module humidifier terminal (HUM) is
energized with 115 volts whenever the induced draft blower
is energized. The integrated control module electronic air
cleaner terminal (EAC) is energized with 115 volts whenever
the circulator blower is energized. This terminal can also be
used to provide 115 volt power to a humidifier transformer.
The remaining primary transformer wire would be connected
to the Line N on the control board.
Furnace 2
Furnace 1
Ylo
Y
W
W2
R
G
C
Figure 37
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
HIGH VOLTAGE !
Ylo
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
ELECTRICAL SHOCK
Y
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
W
.
WIRING
W2
R
G
C

Gas Supply and Piping

T
O AVOID POSSIBLE UNSATISFACTORY OPERATION OF EQUIPMENT
DAMAGE DUE TO UNDERFIRING OR EQUIPMENT
OF NATURAL
/
THE METER TANK TO THE FURNACE
Natural Gas
Propane Gas
The furnace rating plate includes the approved furnace gas
input rating and gas types. The furnace must be equipped
to operate on the type of gas applied. This includes any con-
version kits required for alternate fuels and/or high altitude.
Inlet gas supply pressures must be maintained within the
ranges specified in the adjacent table. The supply pressure
must be constant and available with all other household gas
fired appliances operating. The minimum gas supply pres-
sure must be maintained to prevent unreliable ignition. The
maximum must not be exceeded to prevent unit overfiring.
High Altitude Derate
When this furnace is installed at high altitude, the appropriate
High Altitude orifice kit must be applied. This is required due
to the natural reduction in the density of both the gas fuel
and combustion air as altitude increases. The kit will provide
the proper design certified input rate within the specified
altitude range.
26
WARNING
,
DISCONNECT ELECTRICAL POWER
Accessories - Accessories Wiring
WARNING
/
PROPANE GAS PIPING NEEDED WHEN RUNNING PIPE FROM
.
INLET GAS SUPPLY PRESSURE
Minimum: 4.5" w.c.
Minimum: 11.0" w.c.
,
USE THE PROPER SIZE
Maximum: 10.0" w.c.
Maximum: 13.0" w.c.