Powrmatic PHS 25, Инструкция по установке и эксплуатации

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Form #44201150
-40- Sept 2010
c.
On completion of a service/fault finding task which has required the breaking and remaking of electrical
corrections, the following checks, using a multi-meter must be made.
1. Earth continuity check
2. Polarity check
3. Resistance to earth check
The contractor shall check the following during periodic maintenance.
•
Clearances to combustibles: Check that clearances are being maintained. Make sure there are no
flammable objects, liquids or vapors near the heater. See also Section 4.0).
•
Reflectors: Reflectors should be kept clean, at a minimum blow off the reflectors. (Dirty reflectors will
reduce heat output).
•
Heat exchanger tubes: Inspect the heat exchanger tubes to make sure they are not cracked, sagging or
showing signs of fatigue.
•
Combustion air intake: Disconnect combustion air intake from the control box and inspect internally using a
flashlight to make sure no foreign material has collected in the tubes and that there is no obstruction
around the air intake openings. Clean any foreign materials. Inspect any joints to make sure they are
completely sealed. See also Section 14.
•
Venting System: Disconnect vent pipe and inspect internally using a flashlight to make sure no foreign
material has collected in the pipes. Check the external vent cap and make sure that there is no obstruction
around the exhaust openings. Clean any foreign materials. Inspect any joints to make sure they are
completely sealed. See also Section 14.
•
Gas lines: Make sure that the gas lines are not leaking. Check the gas connection to the heater for any signs
of damage, fatigue or corrosion. If there are any signs of damage to the gas connection or leaks found in the
gas piping, immediately stop using the heater until the gas pipe and connections have been repaired or
replaced. Check that the gas lines are not bearing the weight of the heater. See also Section 11.
•
Burner Box: In order to extend the longevity of the heater, the heat exchanger tube and the burner must be
level. Check that the burner box is level; use the turnbuckle on the burner suspension eyebolt to adjust the
level of the burner. See also Section 9.1.
•
Blower wheel and housing: Check that the blower wheel spins freely, blow out any dust or dirt with
compressed air.
•
Electrode condition: Visually check that the electrode gap is maintained at 3.5mm and that the tips of the
flame sensor and spark electrode are free from deposits. Clean off any deposits. Check that the electrode
ceramic is free from cracks. See Section 19.1.
•
Suspension system: Check that the suspension system is holding the heater level. Make sure that the heater
is hanging securely, look for any evidence where the heater may have been hit accidentally and tighten any
loose hanging points. Check that S hooks are closed. Check that there is no evidence of wear on the chain at
the connection to the heater and at the ceiling.
•
Main Burner and Orifice: Check the Main burner and orifice; remove any dirt or debris including spider webs.
See Sections 19.2 and 19.3 .
•
Electrical Wiring: Check that all the electrical connections are sound and that the wiring is undamaged.
Replace damaged wires as necessary.
•
Air Inlet / Baffle Plate: Check that the air inlet holes in the Baffle Plate, which is clamped between the
Control Box side panel and the Air Inlet flange, are clear from obstructions. Check also, that the wire mesh
panel of the Air Inlet is clean. Clean as necessary using a soft brush. In the case of an appliance having a
ducted air supply, it will be necessary to disconnect the flexible ducting from the Air Inlet by first releasing
the hose clip. If it is necessary to remove the Air Inlet to adequately clean the Baffle Plate it will be
necessary to replace the gasket seal (see Section 19.8.
•
Door Seal: Check the condition of the seal around the Control Box door and replace as necessary.
IMPORTANT: The appliance will not function unless the seal around the control box door is sound and the
door secured with the two toggle latches.
•
Flue Pipes: For flued appliances it is important that periodic sweeping of the flue is carried out according to
the National or Local regulations in force.
•
Auxiliary Controls: Room thermostats, time switches, frost thermostats etc should be checked to ensure
correct functioning, and are set to the user requirements.
•
Re-assemble and Commission: Re-assemble the appliance in reverse order and commission in accordance
with the instructions contained in Section 16.0.