Laars MagnaTherm MGH1600, Инструкции по установке и эксплуатации для

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MagnaTherm Boilers and Water Heaters
Page 35
Figure 18. All power and wiring through the
lower back panel!
8.D Field Wiring
Field wiring for cascading and systems sensors must
be run along the inside face of the available electrical
raceway to the back of the unit.
See Figure 18.
When running the Field Connection wiring
between the units in a cascading installation (Lead
Lag, System Sensor, Outdoor Sensor, Building
Automation, Etc), ALWAYS Exit and Enter the unit
through the lower back panels. so that during future
servicing, the wires do not have to be disconnected
in order to remove the top and side panels.
It is up to the electrician to install all power and
system wiring as per codes and best practices.
The Control Panel pulls forward for easy access of
wiring (See Figure 17). Do not run any wiring to the
right as this will restrict the opening ability of the
Control Panel.
Field
Electrical
Connections.
At the front of
the unit.
Available
Electrical
Raceway
Available
Knockouts
for System
Sensor
and/or
modbus,
etc.
VIEW from
the BACK
Both units are
shown with
outside panels
removed for full
servicing.
Junction Box
for Main Power
Connections
WARNING
Electrical Shock Hazard
Electrical shock can cause severe injury, death
or property damage. Disconnect the power
supply before beginning installation or changing
the wiring to prevent electrical shock or damage
to the equipment. It may be necessary to turn
off more than one power supply disconnect.
All electrical wiring is to be done in accordance
with local codes, or in the absence of local
codes, with: 1) The National Electrical Code
ANSI/NFPA No. 70 - latest Edition, or 2) CSA
STD. C22.1 “Canadian Electrical Code - Part 1.”
This appliance must be electrically grounded in
accordance with these codes.