PVA Installation Manual

Table Of Contents
25
13.6. Humidier
Humidier Control
Sequence of operation:
1. The humidistat closes CNF
2. The fan starts on high
3. CN25 provides 12VDC to turn on the Humidi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 humidi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
Condition
(No Defrost/No Error)
CN25 Output Fan Speed
16 CNF Input
1*
OFF
Heat operation & Thermo OFF
OFF RC setting
Heat operation & Thermo ON
ON
Heat operation & Thermo OFF OFF RC setting
Heat operation & Thermo ON ON High
2
OFF
Heat operation & Thermo OFF
OFF RC setting
Heat operation & Thermo ON
ON
Heat operation & Thermo OFF
ON High
Heat operation & Thermo ON
- - Except for heat operation OFF RC setting
RC: Remote controller
The fan continues to run for 30 seconds after the humidier stops.
*Factory Setting
max 30 ft.