Humidifier - Mitsubishi Electric MVZ-A12AA7 Installation Manual

13.6. Humidifier

Humidifier Control
Sequence of operation:
1. The humidistat closes CNF
2. The fan starts on high
3. CN25 provides 12VDC to turn on the Humidifier
(do not exceed 1 Watt draw per relay)
4. When the Humidistat opens, the fan continues to run for
30 seconds to clear the ductwork of moist air
5. If defrost starts during humidifier operation
CN25 de-energizes
Humidistat:
Non-Voltage a-contact input
Contact rating voltage >=15VDC
Contact Rating Current > = 0.1 A
Minimum Applicable Load =< 1mA at DC
Mode No. Humidistat Output
16 CNF Input
OFF
1*
ON
OFF
2
ON
-
RC: Remote controller
The fan continues to run for 30 seconds after the humidifier stops.
*Factory Setting
max 30 ft.
Condition
(No Defrost/No Error)
Heat operation & Thermo OFF
Heat operation & Thermo ON
Heat operation & Thermo OFF
Heat operation & Thermo ON
Heat operation & Thermo OFF
Heat operation & Thermo ON
Heat operation & Thermo OFF
Heat operation & Thermo ON
- Except for heat operation
CN25 Output Fan Speed
OFF RC setting
OFF RC setting
ON High
OFF RC setting
ON High
OFF RC setting
25