Figure 1. Heatec Firestorm heater.
MAINTENANCE
Firestorm™ water heaters
Publication 1-10-218
CONTENTS
Safety .......................................................................... 1
Scope
.......................................................................... 1
Intended users ............................................................ 2
Calcium clean-out ....................................................... 2
Cleaning strainers ....................................................... 4
Freeze protection
......................................................... 4
Checking water level switches
.................................... 5
Checking the flame scanner ........................................ 7
Checking pilot gas pressure regulator .........................7
Checking high fuel gas pressure switch ...................... 7
Checking low fuel gas pressure switch
....................... 8
Checking high flue gas stack temperature switch
....... 8
Checking auxiliary contacts for water pump motor ..... 9
Checking auxiliary contacts for combustion
air motor ................................................................ 9
Checking low combustion air switch
......................... 10
Maintenance schedule
............................................... 12
SAFETY
Carefully following safety instructions in this docu-
ment will help you avoid serious injury or death. Read
instructions for each topic in their entirety before actu-
ally doing the work. Pay special attention to hazard
warnings that appear herein and on the heater. These
warnings identify known hazards, their severity and
how you can avoid them.
Warnings also appear at appropriate places in the
instructions.
Please be aware that if you deviate from the instruc-
tions, you could create unforeseen safety hazards. You
should perform step-by-step instructions in the order
given.
SCOPE
This document provides instructions for maintain-
ing Firestorm water heaters (Fig. 1). It also pro-
vides instructions on how to check various devices
in case you need to make sure they are working
properly.
Failure to heed certain recommendations may re-
sult in damage to the heater and/or shorten its life.
The components covered are mainly those that can
cause heater malfunctions when they go bad, need
cleaning, or get out of adjustment.
Because of differences in heaters, some instruc-
tions may not apply to your heater.
HEATEC TEC-NOTE
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