Daikin FC Series - Default Chapter; Table of Contents

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Introduction.......................................3
Hazardous Information Messages ....................3
General .........................................4
Warranty Exclusion ................................4
Ventilation & Flue Pipe Requirements .................4
Factory Mounting .................................4
Factory Checkout .................................4
Installation........................................5
General .........................................5
Flue Box ........................................5
Wind Deector ...................................5
Electrical ........................................6
Gas Pressure Requirements.........................6
Gas Piping ......................................6
Valve and Regulator Venting.........................7
Normally Open Vent Valve ..........................7
Gas Piping Routing into Unit.........................7
On-The-Roof Piping (Models 020-140) ...............7
Through-the-Curb Piping
(Models 020-140) ...............................7
Typical Piping Connections ........................8
Gas Piping
(Models 150 through 200)...........................8
Gas Piping within the Vestibule.......................8
Field Gas Piping Required ..........................8
Condensate Drain.................................9
Vestibule (Models 150 through 200) ...................9
Start-Up and Operating Procedures .................10
Start-Up Responsibility ............................10
Start-Up Procedure...............................10
Before Start-Up ................................10
Start-Up Preliminary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Low Fire Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pilot Start-Up....................................11
Main Flame Start-Up..............................11
Typical Electrical Schematic for MicroTech
®
III Control
System
with RM7897A .................................12
Typical Sequence of Operation (3-1 gas burner)
for MicroTech III Control Systems....................13
Modulating Gas Burner without End Switch Cycling ....14
Typical Sequence of Operation (3-1 gas burner)
with no MicroTech III Control System . . . . . . . . . . . . . . . . . 15
Service..........................................16
General ........................................16
Pilot Air & Gas Adjustments ........................16
Pressure Regulator...............................16
Pilot Orice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Ignition Electrode Adjustments . . . . . . . . . . . . . . . . . . . . . . 16
Flame Rod Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pilot Location Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Air Pickup Tube Adjustment ........................17
Gun Assemblies .................................17
Modulating Linkage Adjustment .....................18
Altitude Considerations............................18
Combustion Testing ..............................18
Verify Input Rate .................................18
Check CO
2
, CO & Stack Temperature ................19
Cleaning Heat Exchangers .........................19
Leakage Symptoms ..............................20
Checking For Leaks ..............................20
Causes of Failures ...............................20
Replacing a Heat Exchanger .......................21
Furnace Condensation ............................21
Rear Inspection Cover ............................21
Combination Fan and Limit Control ..................22
Replacing “White Rogers” Fan Limit Controller with
“Antunes” ......................................22
Maintenance .....................................23
Monthly ......................................23
Twice Yearly ..................................23
Yearly .......................................23
Flame Safeguard ................................23
Keyboard Display Module..........................23
Operation ......................................24
Normal Start-Up .................................24
LED Display ....................................24
Troubleshooting ..................................25
Fault Codes......................................30
Typical Parts List .................................34
Controls, Settings and Functions....................35
Capacities and Dimensions.........................36
Performance and Service History....................37
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