Reznor PDF2SF Unit Installation Manual - Manual (Page 2)

2
IMPORTANT SAFETY INFORMATION .......................3
REQUIREMENTS & CODES
.......................................4
GENERAL INFORMATION ..........................................5
Before You Install this Unit .........................................5
Locating the Equipment.............................................5
Heating Load ............................................................5
COMbUSTION AIR & VENTINg REQUIREMENTS ...6
General Information ..................................................7
Vent Termination .......................................................7
CIRCULATING AIR SUPPLY ......................................8
Air Ducts ...................................................................8
Air Filter Requirements .............................................8
Unconditioned Spaces ..............................................9
Acoustical Duct Work ................................................9
UNIT INSTALLATION ..................................................9
Packaging Removal ...................................................9
Rigging & Hoisting .....................................................9
Clearances to Combustible Materials ........................9
Ground Level .............................................................9
Rooftop ......................................................................9
Horizontal to Downflow Conversion .........................10
Condensate Drain ..................................................10
ELECTRICAL WIRING ...............................................10
Pre - Electrical Checklist .........................................10
Line Voltage .............................................................11
Thermostat / Low Voltage Connections ...................11
2-Stage Heat / Cool T-stat Configuration ..............11
Heating Configuration ..............................................12
Heat Pump Defrost Mode ....................................12
Checking Heat Anticipator Settings ......................12
Configuring the Variable Speed Blower ..................12
Selecting Cooling Airflow .....................................12
Selecting Gas Heating Airflow ..............................13
Delay Profile .........................................................13
Demand Defrost Control..........................................13
Ambient Sensor Mounting .......................................13
Optional Humidistat .................................................13
Optional Comfort Alert
TM Diagnostics Module .........14
24VAC Power Wiring ............................................14
Thermostat Demand Wiring .................................14
L Terminal Wiring .................................................14
DC SOL Connection ............................................14
Interpreting the Diagnostic LED’s .........................15
LED Description ...................................................15
Installation Verification .........................................15
Troubleshooting the Installation ............................15
Resetting Alert Codes ..........................................15
Grounding................................................................15
gAS SUPPLY & PIPINg
............................................16
Leak Check .............................................................17
High Altitude Conversion .........................................17
LP/Propane Gas Conversion ...................................17
STARTUP & ADJUSTMENTS ...................................18
Pre - Start Checklist ................................................18
Start-up Procedure ..................................................18
Air Circulation .......................................................18
Short Cycle Protection .........................................18
System Cooling Operation (2-Stage) ...................18
System Heating (Heat Pump Mode) ....................18
System Heating (Emergency Heat Mode) ...........19
Verifying & Adjusting Temperature Rise ..................19
Verifying & Adjusting Firing Rate .............................19
Verifying Over-Temperature Limit
Control Operation ....................................................19
Manifold Pressure Adjustment ................................20
Verifying Burner Operation ......................................20
Refrigerant Charging ...............................................20
Charging R-410A Unit in AC Mode ......................20
Charging R-410A Unit in Heating Mode ...............20
OPERATING SEQUENCE .........................................21
2-Stage Heating Mode (Heat Pump) .......................21
Gas Heating Mode (Emergency Heat) ....................21
2-Stage Cooling Mode.............................................22
Fan Mode ................................................................22
EQUIPMENT MAINTENANCE ...................................22
Cleaning of Heat Exchanger ...................................23
Cleaning of Burners ................................................24
TROUBLESHOOTING ...............................................24
COMPONENT FUNCTIONS ......................................25
REPLACEMENT PARTS ............................................25
FIgURES & TAbLES
.................................................26
Figure 11. Unit Dimensions ..................................26
Table 9. Center of Gravity & Shipping Weights .....26
Airflow Information ...................................................27
Table 10. Nominal Airflow Rates & Temp Rises ...27
Table 11. Airflow Settings for Cooling ...................27
Table 12. Airflow Settings for Heating ...................27
Gas Information .......................................................28
Table 13. Gas Pipe Capacities .............................28
Table 14. Gas Flow Rates ....................................28
Figure 12. Gas Valve Label ..................................29
Wiring Diagrams ......................................................30
Figure 13A. T-Stat Connection for Two-Stage
Heating / Two-Stage Cooling ............30
Figure 13B. Two-Stage, Hot Surface Ignition &
Blower Control Board .......................30
Figure 14. Two-Stage Heat / Two-Stage Cool
Heat Pump (2 & 5 Ton) .......................31
Figure 15. Two-Stage Heat / Two-Stage Cool w/
Optional Comfort Alert (2 & 5 Ton) ......32
Figure 16. Two-Stage Heat / Two-Stage Cool
Heat Pump (3 & 4 Ton) .......................33
Figure 17. Two-Stage Heat / Two-Stage Cool w/
Optional Comfort Alert (3 & 4 Ton) ......34
Comfort Alert Troubleshooting Charts .....................35
Table 15. LED Diagnostics ...................................35
Table 16. Module Wiring Troubleshooting .............37
Refrigerant Charging Charts ...................................37
Figure 18. Charging Chart for 2 Ton Units ............38
Figure 19. Charging Chart for 3 Ton Units ............38
Figure 20. Charging Chart for 4 Ton Units ............39
Figure 21. Charging Chart for 5 Ton Units ............39
INSTALLATION / PERFORMANCE CHECKLIST .....40
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