Airxcel Marvair LL357D4, Руководство пользователя

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LL357D4 PDS, 4.2011 8
Mode of Operation
For an unmanned site, Auto MUST be selected as the Operating Mode. Since the control module in
the LL357D4 does not have a "G" input, the fan selector switch on the thermostat is not functional. In
normal operation, the fan and the compressor operate simultaneously. For continuous fan on dual unit
installations, install a jumper wire between terminals 8 and 3 and remove the jumper wire between 1
and 3. These terminals are on the low voltage terminal board in the air conditioner control box.
There are four possible operating modes for the LL357D4, Off, Cool, Heat, and Cool & Heat (auto-
changeover). Modes are accessed by pressing the SYS (left) button.
OFF Mode
• In this mode, the thermostat will not heat or cool.
Heat Mode
• In this mode, the thermostat controls the heating system. When the heat is on, the
flame icon appears on the display .
Cool Mode
• In this mode, the thermostat controls the cooling system. When the the unit is
cooling, the snowflake icon appears on the display .
Cool and Heat Mode (Auto Changeover)
• In this mode, the thermostat controls the cooling and heating systems,
automatically changing over from one to the other as needed .
• The timing display alternates with the set temperature every 10 seconds in the cool
and heat mode.
Lockout Feature
The thermostat has a button lockout feature so the mode cannot be changed and the
temperature adjustment is limited . Select the appropriate lockout from Configuration
Mode Settings.
To activate the LOCK feature:
1. Simultaneously press the SYS, RIGHT and UP buttons for 10 seconds.
2. The lockout icon will display and the lockout function will be enabled .
To deactivate the LOCK feature, repeat steps 1 and 2 above.