SECTI
ON
4
: M
AI
NT
E
NAN
C
E
35
H2O BOILER
HC SERIES IOM Manual
Clean up condensate drain
o
Inspect the condensate drain system including the drain line, vent line, fittings and
condensate trap.
o
Ensure there are no restrictions.
Inspect all piping
o
Inspect all gas and water piping and check for leaks.
o
Fix the leaks if found.
Inspect ventilation system
o
Inspect the entire ventilation system for air and flue gas. Check for obstruction, corrosion
and leakage. Fix any leakages on fittings or from corrosion.
o
Check the duct and draft hood to ensure there is no restrictions or signs of rust.
o
Inspect all flue gas passageways, including the inner surface of the heat exchanger for any
sign of rust or corrosion.
Inspect pressure relief valve
Inspect burner system (IMPORTANT –
Dual Fuel Option
)
o
Remove the top cover by undoing the fasteners securing the cover.
o
Remove the burner pilot, UV flame sensor and the flame observation port.
o
Check for calcification on the surfaces of the pilot and flame sensor.
o
Clean the glass on the flame observation port.
o
Replace the components if determined unserviceable.
o
Check for any piping/orifice blockages.
o
Inspect the central plate and the burner for any sign of damage or corrosion.
Inspect electronic wiring
o
Inspect the unit wiring and ensure the leads are securely attached and free of deterioration.
Inspect control settings
o
Check the unit settings are matching the operator’s requirements.
o
Any other unit components may have user-specific settings as well. Inspect the settings and
maintain consistency
(if applicable)
.
Initiate unit start-up
o
Follow the instructions in Section 3: Operation, start the unit.
o
Continuously monitor unit operating temperature and pressure as the post start-up
maintenance duties are performed.
D-VAC Sales Inc. Email: [email protected] Tel: (516) 256-3131 www.dvachvac.com
