Reznor YDSA Operation Manual - Manual (Page 48)

Form O-Y, PN 273647R1, Page 48
INDEX
A
Air Proving Switch 9
B
Belt (Wheel) 30
Braze 23
Burner Removal Instructions 41
C
Charge the System 24
Coil Maintenance 10
Combustion Air 37
Combustion Air Inlet Openings 39
Combustion Air Proving Switch 37
Compressor Digital Controller LED’s
45
Compressor Handling 21
Compressor Maintenance 19
Compressor Oil Charge 22
Compressor Replacement 21
Condenser Fans 10
Condensing Coil Cleaning 10
Control Locations 4
Control Staged Gas 33
Crankcase Heater 24
D
Damper Motor 9
Dampers and Damper Controls 9
Digital Controller and Sensors 27
Dirty Filter Switch 7
Drive Components 8. 9
E
Electrical System Check 24
Electric Heating Elements 42
Energy Recovery Wheel (Mainte-
nance) 28. 29. 30
Evacuate the Circuit 23
Evaporator Coil Cleaning 10
F
Condenser Fan 10
Filter Driers 22
Filters 6
G
Gas Control Modulating 34
Gas Pressure Safety Switches 37
H
HAZARD INTENSITY LEVELS 2
Heat Exchanger 32. 33. 34. 36. 38.
40. 41
Heat Exchanger Maintenance 41
L
Leaks 23
LED Flash Codes for DSI Control
Module 35
High Temperature Limit Control 39
M
Maintenance Requirements 2
Maintenance Schedule 3
Modulating Reheat 13. 14
Modulating Valve 36
Motor 30
Motor and Blower 8
O
Outside Air Hood 7
P
Pulley 30
R
R-410A Refrigerant Charge 25
REFERENCES 48
Refrigerant Pressure and Tempera-
tures 17. 18
S
Spark Gap 39
Recommended subcooling 18
Subcooling 1824. 26
See also 22
Recommended superheat 18
Superheat 26
System Startup 25
T
Temperature/Pressure Conversion
Chart 19
Troubleshooting Compressor Digital
Controller 45
Troubleshooting Electric Heat Section
46
Troubleshooting Gas Heat Section 47
Troubleshooting Refrigeration 43. 44
V
Venter Motor and Wheel 40
Venter Wheel Position 40
Vent Temperature Limit Switch 35
Voltage Imbalance 25
Voltage Phasing 25
Voltage Protection 27
W
Wheel Drive Components 30
Wheel Maintenance 28
Wheel Replacement Parts 30
Wheel Seals 29
Wheel Segments 28
REFERENCES: The Installation Manual, Control Instructions, this Operation/Maintenance Manual, and
applicable supplier instructions are shipped with the unit. The literature listed below is also available at
www.ReznerHVAC.com.
•
Installation Manual, Form I-Y
•
Control Instructions, Form CP-Y D19 or Form CP-Y D21
•
Replacement Parts, Form P-Y
•
Weather Hood, I-OPT-WH
•
Curb, Form I-OPT-C
•
P-Valve, Form P-Valve
Record installation information on the back
of the installation manual, Form I-Y.
Keep all booklets for future reference.
www.ReznorHVAC.com; (800) 695-1901
©2014 Reznor LLC, All rights reserved.
Trademark Notes: Reznor
® and Macrochannel ® are registered in at least the United
States. All other trademarks are the property of their respective owners.
8/14 (Serial No. Date Code BNH) Form O-Y (Version A)
®