Control M6004 Instruction Manual page 11

Installation
Humidifier Wiring
• To wire a humidifier, the 2 wires connecting the original humidistat need to be connected to the 2 terminals marked
'H1' and 'H2' on the thermostat.
• The original humidistat should be removed or set to 'OFF' position.
• The 2 humidifier control terminals 'H1' and 'H2' are electrically isolated from the Heat / Cool terminals.
• 'H1' and 'H2' terminals are non-polarized, and there is no function difference between 'H1' and 'H2'.
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