Mitsubishi Electric MVZ-A12 AA4 Manuel D'installation page 24

13.6. Humidifi er
Humidifi er Control
Sequence of operation:
1. The humidistat closes CNF
2. The fan starts on high
3. CN25 provides 12VDC to turn on the Humidifi er
(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 humidifi er 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*
OFF
2
-
RC: Remote controller
The fan continues to run for 30 seconds after the humidifi er stops.
*Factory Setting
24
Condition
(No Defrost/No Error)
Heat operation & Thermo OFF
Heat operation & Thermo ON
Heat operation & Thermo OFF
ON
Heat operation & Thermo ON
Heat operation & Thermo OFF
Heat operation & Thermo ON
Heat operation & Thermo OFF
ON
Heat operation & Thermo ON
- Except for heat operation
max 30 ft.
CN25 Output
OFF
OFF
ON
OFF
ON
OFF
Fan Speed
RC setting
RC setting
High
RC setting
High
RC setting