Slant/Fin VHG-100-CH, Installation And Service Manual

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E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO
Inspection, maintenance and service tasks
Inspection, maintenance and service including the replacement of boiler parts must only be carried out by a
licensed professional, service agency or the gas supplier. Apart from the maintenance proceedings it is required
to maintain a service log for each boiler that includes all of the following information:
•
Serial number
•
Date and time of maintenance
•
Name of maintenance engineer
•
Which parts were exchanged during
maintenance?
•
Which settings (software) were changed
during maintenance
•
Special remarks / findings
•
Future aspects that need extra attention
•
Additional aspects: measurement reports, complaints
by the (end)-user, lock-out codes, etc.
•
Static Gas Pressure inches W.C.
•
CO
2
% at high fire
•
Gas Pressure at high fire
•
Gas Pressure at low fire
•
pH of the water or water/glycol in the system
•
Name of service company
•
Date of service
During maintenance, the following items (listed below in bold) regarding the boiler must be checked and inspected.
•
Customer comments
Comments and remarks from the customer must be analyzed and used to find possible causes for any occurring
problems and complaints.
•
Service history
The operational and fault history (total amount and since the last service) can be viewed in the boiler control
This information can be used to specify the maintenance and service proceedings in relation to the boiler (parts).
Boiler History
Successful Ignitions 32
Failed Ignitions 10
Flame Failures 0
Operation Days 0 days
▼
•
Water leakage
The water pressure of the heating installation must be more than 11.6 psi (0.8 bar) and at a maximum of 43.5 psi
(3.0 bar) in normal operation. When the water pressure drops below the minimum occasionally, there might be a
water leak. Check the complete heating installation for any water leakages and have these repaired.
Higher water pressures are allowed with the use of a different relief valve and a pressure switch kit
•
Flue gas & air supply
The flue gas pipes, and the air supply pipes must be checked for gas tightness. Also check if the mounting of these
pipes is correct, safe and not damaged. Check the top side of the boiler housing for signs of water leakage and
traces of water coming from the air supply pipe, the air vent or any condensate coming from the flue gas pipes.
Check, in order to guarantee the supply flow, that there are no obstructions in front of the exhaust venting or the
intake combustion air venting.
Check that all intake and exhaust venting has been properly reassemble and sealed before leaving the job site
•
Gas supply & safeties
The gas pipes must be checked for gas tightness. Also check if the mounting of these pipes is correct, safe and
not damaged. Any built-in safeties must be checked for a correct functioning. Any gas pipe or fitting that have been
opened or adjusted must be checked for leaks.
•
Remove complete burner unit
The complete boiler unit consists of the fan, venturi, gas valve, the burner plate and the internal burner. To make
more space to dismantle the complete burner unit pull down the burner controller unit.
To remove this part for an internal heat exchanger check:
•
remove the four M6 nuts
•
remove the ignition cables
•
close the gas shutoff valve under the boiler
•
loosen the gas coupling under the gas valve
•
remove the air intake pipe from the venturi.
Before starting work on the boiler:
•
Switch off the electrical power to the boiler (service switch and/or unplug boiler)
•
Close the gas valve to block the gas supply to the boiler
Figure 18.1
NOTICE