Maintenance
5-2
750-437
Q Series Full Modulation
Electrical and mechanical devices require systematic and periodic inspection and maintenance. Any “automatic”
features do not relieve the operator from responsibility, but rather allow freedom from certain repetitive chores,
providing time for upkeep and maintenance.
Unusual noise, improper gauge reading, leak, sign of overheating, etc., can indicate a developing malfunction,
requiring corrective action.
5.2 — Control System
Most operating controls require very little maintenance beyond regular inspection. Examine electrical
connections. Keep the controls clean. Remove any dust from the interior of the control. Covers should be left on
controls at all times. Keep the control cabinet doors closed. Dust and dirt can damage motor starters and relay
contacts. Starter contacts are plated with silver and are not harmed by discoloration. Never use files or abrasive
materials such as sandpaper on contact points.
5.2.1 — LMV3 Control
This control requires no adjustment, nor should any attempt be made to alter contact settings or timing logic.
The flame detector lens should be cleaned as often as conditions demand. A periodic safety check procedure
should be established to test the complete safeguard system. Tests should verify safety shutdown with a safety
lock out upon failure to ignite the pilot or the main flame, and upon loss of flame. Each of these conditions
should be checked on a scheduled basis. The safety check procedures are contained in the manufacturer's
bulletin.
5.3 — Impeller
The impeller is enclosed in a die cast aluminum housing and requires no adjustment.
5.4 — Firing Head Inspection
Release the side cover and pull the firing head out of the burner housing. Inspect the flame scanner lens to be
sure it is clean. Inspect the lead wire to the ignition electrode. It must be firmly attached and the insulation
should be clean and free of cracks.
Summary of Contents for ProFire Q Series
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Page 18: ...Introduction 1 8 750 437 Q Series Full Modulation...
Page 28: ...Installation 2 10 750 437 Q Series Full Modulation...
Page 50: ...Operation 3 22 750 437 Q Series Full Modulation...
Page 82: ...Troubleshooting 6 24 750 437 Q Series Full Modulation...
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