Operation; General - Harsco Industrial C1500H Installation & Owner's Manual

3.11.3 Checking Flame Signal
Using the control panel, enter the information mode and scroll down view the flame signal. This shows μA when the
boiler is firing and shows 0μA when the boiler is not firing. 7-8μA is a strong flame signal.

4 OPERATION

4.1 G
ENERAL
4.1.1 Control front panel
TB2
120VAC
high voltage
terminal
connections
ENVI control
keypad/display
Power
switch and
contol circuit
breakers if
applicable
ENVI control
relay board
Become familiar with the basic operation of the boiler. The interior of the front door shows the boiler Operating
Instructions.
4.1.2 Factory Tests
Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on this
boiler when the boiler underwent factory tests specified in ANSI Z21.13/CSA 4.9, latest edition. (See "Factory Fire
test" label located on the back left side of the boiler.)
service technician to inspect the boiler and to replace any part of the control system and any gas control which has
been under water.
Liquid Level
ENVI control
control or
low water
cut off
Do not use this boiler if any part has been under water. Immediately call a qualified
44
®
MACH Gas Fired Boiler
TB1
low voltage
terminal
connections
Air and back
pressure
safety
switches
Manual
reset high
water
temperature
limit