9
HUMIDI-TECH wiring
All wiring must be in accordance with all
governing codes, and with the HUMIDI-TECH
®
or
HUMIDI-TECH DI wiring diagrams. The diagrams
are located inside the removable subpanel cover on
the right-hand side of the humidifier cabinet. Power
supply wiring must be rated for 105 °C.
Refer to the maximum load (I max. A) on the rating
plate, and use the tables on the following page to
determine the appropriate wire, conduit and fused
disconnect requirements.
When selecting a location for installing the
HUMIDI-TECH, avoid areas close to sources of
electromagnetic emissions such as power
distribution transformers.
Grounding requirements
The earth must be made by solid metal to metal
connections. The ground must be a good radio
frequency earth. Ground wire should be same size
as power wiring.
Shielded/screened cable drain wire connection to lug
Note:
For maximum E.M.C. effectiveness, all humidity, temperature, and airflow controls should be wired
using multicolored shielded/screened plenum-rated cable with a drain wire for the shield/screen. The drain
wire should be connected to the shield/screen ground terminal with its length kept to less than 50 mm.
Shield/screen ground lug
Microprocessor
board
VAPOR-LOGIC
3
keypad on front of
cabinet
OM-1505
HUMIDI-TECH
®
WIRING
Field wiring requirements
Note:
Control wiring and power wiring must be run in
dedicated or separate earthed metal conduit, cable
trays or trunking.
OM-1007
Fused disconnect
(provided by
installer) sized per
tables on next page
Power supply
(provided by
installer) cable
sized per tables
on next page
0.6 m to 1.9 m,
1.7 m recommended
Right side view of HUMIDI-TECH
VM99-C-0302-M-0302.pdf 9
11/19/2009 9:51:08 AM
