Installation | 28
Multi Mode Wiring (NHTC Only)
Connect up to 16 units (equivalent of 1600 lb/hr) using 18-24 AWG multi-strand, twisted
pair, shielded cable.
Connect humidistats/transducers and On/Off safety loop to master unit only.
When connecting double units connect only to driver board A.
See Multi Mode on page 48 and Multi Unit Op. Range on page 54for software configuration.
Figure 29: Multi Mode Wiring
Daisy Chain
up to 16
Humidifiers
Install Jumper on
JP1 on last
humidifier
Daisy chain pole 2 and 3
of terminal J2 of the
driver board.
Do not reverse polarity.
Do not connect to pole 1 or 4.
Note:
Master
Slave 1
Slave X