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3.4.
Gas Heat Operation—Gas Units
The Prodigy system has gas heat output control for up to two gas heat sections with two-stage gas valves.
NOTE
: M3 unit controller controls the first heat circuit and C3 controls the second heat circuit.
3.4.1.
Heat Speeds
When heating option is set to D (10
th
character in the model number), the blower speed is as follows:
W1 - Low Heat Speed
W2 - High Heat Speed
When heating option is set to any other character, the blower speed is as follows:
W1 - High Heat Speed
W2 - High Heat Speed
3.5.
Electric Heat Operation—Electric / Electric Units
3.5.1.
Electric Heat Stage Delay Operation
First-stage heating demand energizes first-stage electric heat (K15 and K17). Second-stage heating demand energizes
second-stage electric heat (K16 and K18). When first-stage and second-stage heating demands are simultaneous, a
delay will occur between stage one and two (parameter 62). Default delay is 12 seconds. Optional range setting is 12 to
60 seconds.
Go to
SETTINGS > RTU OPTION > EDIT PARAMETER = 62 (HT ELEC STAGE DELAY)
3.5.2.
Primary or Secondary Limits
If an electric heat limit (S15 or S63) opens, electric heat is de-energized.
If an electric heat limit opens three times (default) during a thermostat cycle, in addition, the service alarm output
will turn on. Valid options for parameter 61 are 1 through 15.
Go to
SETTINGS > RTU OPTION > EDIT PARAMETER = 61 (HT ELEC MAX LT OCC)
