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5 Operations
5.1 NURO Control Panel
5.1.1 Power On/Off Switch
After the CM300-CM399-CM500 boiler has been installed in
compliance with this manual, it is necessary to access the power
(on/off) switch located on the right surface of the sheet metal
enclosure as shown
below:
After the C750-C900-C1050, or C750GG-C900GG-C1050GG
boiler has been installed in compliance with this manual, it is
necessary to open the front door in order to access the power
(on/off) switch located in the upper left of the control panel sheet
metal as shown below:
Revised: January 3, 2020
Released: January 3, 2020
Patterson-Kelley 2020
All Rights Reserved.
®
P-K MACH
Technical Service 1.877.728.5351
Do not use this boiler if any
part has been under water.
Immediately call a qualified
service technician to inspect
the boiler and to replace any
part of the control system and
any gas control which has
been under water. Failure to
do so could result in
electrocution, injury, or death.
If overheating occurs or the
gas supply fails to shut off, do
not turn off or disconnect the
electrical supply to the pump.
Instead, shut off the gas
supply at a location external to
the boiler.
N
!
OTICE
The On/Off switch only interrupts
power to the NURO control. In
order to fully remove power to
the entire boiler, use the external
disconnect.
1004905980 P-K MACH CM300-CM500&C750-C1050
Installation and Owners Manual (Rev F Jan-2020).docx
Gas Fired Boiler
Page 57
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