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Mighty Therm 2 (200, 300, 400) Install & Operating
6.G Shutting Down the Unit
1.
Switch off the main electrical disconnect switch.
2.
Close all manual gas valves.
3.
If freezing is anticipated, drain the appliance
and be sure to also protect building piping from
freezing.
This step to be performed by a qualified
service person.
6.H To Restart the Unit
If drained, follow
Section 6.1
filling and purging.
1.
Switch off the main electrical disconnect switch.
2.
Close all manual gas valves.
3.
WAIT FIVE (5) MINUTES.
4.
Set the aquastat or thermostat to its lowest
setting.
5.
Open all manual gas valves.
6.
Reset all safety switches (pressure switch, manual
reset high limit, etc.).
7.
Set the temperature controller to the desired
temperature setting and switch on electrical
power.
8.
Burner will go through a pre-purge period and
ignitor warm-up period, followed by ignition.
Should any odor of gas be detected, or if the
gas burner does not appear to be functioning
in a normal manner, close main shutoff valve,
do not shut off switch, and contact your heating
contractor, gas company, or factory representative.
Si vous sentez une odeur de gaz ou si le brûleur
à gaz ne parait pas fonctionner de manière
normale, fermez la vanne d'isolement, ne fermez
aucun interrupteur, et appelez votre entreprise
de chauffage, la compagnie de gaz ou un
représentant du fabricant.
in this manual for proper
Caution
Attention
SECTION 7 Maintenance
7.A System Maintenance
1.
Lubricate the system water-circulating pump, if
required, per the instructions on the pump.
2.
If a strainer is employed in a pressure reducing
valve or the piping, clean it every six months.
3.
Inspect the venting system for obstruction or
leakage at least once a year. Periodically clean
the screens in the vent terminal and combustion
air terminal (when used).
4.
Keep the appliance area clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
5.
If the appliance is not going to be used for
extended periods in locations where freezing
normally occurs, it should be isolated from the
system and completely drained of all water. All
systems connected to it should also be drained or
protected from freezing.
6.
Low water cutoffs, when installed on a
residential hot water heating system, the probe
should be removed and cleaned every five years.
When installed on a commercial application, the
probe should be removed and cleaned annually.
7.
The Pressure Relief Valve should be inspected
and tested every year.
8.
Inspect flue passages, and clean with brushes/
vacuums, if necessary. Sooting in flue passages
indicates improper combustion. Determine the
cause and correct.
9.
Inspect the vent system and air intake system,
and if the vent system is Category III, ensure
that all joints are sealed properly. If joints need
to be resealed, follow venting manufacturer's
instructions to clean and reseal vent system.
7.B Appliance Maintenance and
Component Description
Only genuine manufacturer's replacement parts should
be used.
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
Lors d'entretien ou de réparation des commandes,
étiquetez tous les câbles avant de les déconnecter.
Des erreurs de câblage peuvent provoquer des
fonctionnements incorrects et dangereux. Après
toute intervention d'entretien ou de réparation,
vérifier que l'appareil fonctionne correctement.
Page 33
Caution
Attention
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