Lennox ML193UH030XE36B Installation Instructions Manual page 37

Accessory Terminals
One line voltage "EAC" 1/4" spade terminal is provided
on the furnace integrated control. See FIGURE 60 for in-
tegrated control configuration. This terminal is energized
when the indoor blower is operating. Any accessory rated
up to one amp can be connected to this terminal with the
neutral leg of the circuit being connected to one of the pro-
vided neutral terminals. If an accessory rated at greater
than one amp is connected to this terminal, it is necessary
to use an external relay.
One line voltage 120V "HUM" 1/4" spade terminal is pro-
vided on the furnace integrated control. See FIGURE 60
for integrated control configuration. This terminal is ener-
gized in the heating mode when the combustion air induc-
er is operating. Any humidifier rated up to one amp can be
connected to this terminal with the neutral leg of the circuit
being connected to one of the provided neutral terminals.
If a humidifier rated at greater than one amp is connected
to this terminal, it is necessary to use an external relay
relay
One 24V "HUM" 1/4" spade terminal is provided on the
furnace integrated control. See FIGURE 60 for integrat-
ed control configuration. The terminal is energized in the
heating mode when the combustion air inducer is operat-
ing and the pressure switch is closed. Any humidifier rated
up to 0.5 amp can be connected to this terminal with the
ground leg of the circuit connected to ground or the "C"
terminal.
Thermostat
Install the room thermostat according to the instructions
provided with the thermostat. See FIGURE 59 for thermo-
stat designations. If the furnace is being matched with a
heat pump, refer to the thermostat installation instruction
for set up.
ML193UHE
Model Number
-030
-045
-070
-09036C
-09048C
-11048C
-11060C
Model Number
All Models Factory Setting
Allowable Heating Speeds
Red Yellow
Factory Setting
Allowed
Allowed
Not Allowed
Not Allowed Allowed
Not Allowed
Allowed
Allowable Circulation Speeds
Red Yellow
Not Allowed
Indoor Blower Speeds
1 - When the thermostat is set to "FAN ON," the indoor
blower will run continuously on the (FAN) speed when
there is no cooling or heating demand. See table below
for for allowable circulation speeds.
2 - When the ML193UHE is running in the heating mode,
the indoor blower will run on the heating speed (HEAT).
See table below for allowable heating speeds.
3 - When there is a cooling demand, the indoor blower will
run on the cooling speed (COOL).
Generator Use - Voltage Requirements
The following requirements must be kept in mind when
specifying a generator for use with this equipment:
• The furnace requires 120 volts + 10% (Range: 108
volts to 132 volts)
• The furnace operates at 60 Hz + 5% (Range: 57
Hz to 63 Hz)
• The furnace integrated control requires both po-
larity and proper ground. Both polarity and proper
grounding should be checked before attempting to
operate the furnace on either permanent or tempo-
rary power
• Generator should have a wave form distortion of
less than 5% THD (total harmonic distortion).
Blue
Allowed
Factory Setting
Allowed
Factory Setting
Allowed
Factory Setting
Blue
Not Allowed
Page 37
Brown Black
Allowed
Not Allowed
Factory Setting
Allowed
Factory Setting Allowed
Allowed Not Allowed
Brown Black
Not Allowed Not Allowed