Nortec MES2 - Manual (Page 22)

19 | Installation
Primary Voltage Wiring
Figure 17: Primary Power Connection
L2
L1
3 Phase
Note:
1
2
3
4
5
6
Ensure mains voltage and HWS
jumper settings match operating
voltage (see table below for setting,
see Figure 21 for jumper location).
Dedicated fused disconnect
must be installed. Fusing must
not exceed max circuit protection
as indicated on the specification
label.
Ensure that adequate power
is available to carry full
humidifier amp draw as
indicated on the specification
label.
Insert wires into cylinder plugs
and tighten with 2mm allen wrench
to11 in-lb.
Ensure both plumbing cabinet
and remote electrical bracket
(if present) are grounded. Use
ground wires if required.
All wiring to be in accordance
with national and local
electrical codes.
1 Phase
L3
L2
L1
Disconnect Contactor
Disconnect Contactor
Cylinder
plug with
white
marker
Current
transformer
Current
transformer
Cylinder
plug with
white
marker
Secure wires with tie
wraps to tabs provided
in mounting bracket
Cylinder Plugs
Mains Voltage Jumper HWS Jumper
600
480
380
277
240
208
Mains Voltage and HWS Select
J1
J2
J3
J4
J5
J6
J8
J9
Ground Lug
(on cabinet ATT or
on bracket REM)
Cabinet ground wire
Remote Electrical Bracket
ground wire