Thermal Solutions APEX APX425C Installation, Operating And Service Instructions page 157

Table Page
Number Number
Section 7 - Gas Piping (continued)
Table 7-1 53
Table 7-2 54
Table 7-3 54
Table 7-4 54
Table 7-6 55
Section 8 - Electrical
Table 8-1 58
Section 9 - System Start-up
Table 9-2 71
Table 9-3 71
Table 9-6 73
Table 9-7 74
Table 9-8 74
Table 9-9 75
Table 9-10 76
Section 10 - Operation
Table 10-1 78
Table 10-4 80
Table 10-5 80
Table 10-7 81
Table 10-8 82
Table 10-9 82
Table 10-10 82
Table 10-11 82
Table 10-20 95
Table 10-22 103 & 104
Table 10-23 105
Table 10-25 108
Table 10-26 110-114
Table 10-27 114
Section 12 - Troubleshooting
Table 12-3 123 & 124
Table 12-5 125 - 127
Table 12-8 129
Table 12-9 129
Table 12-10 129
106308-05 - 3/23
Description
Maximum Capacity of Schedule 40 Black Pipe in CFH* (Natural Gas) For Gas Pressures of 1/2
psi (3.4 kPa) or Less
Maximum Capacity of Schedule 40 Black Pipe in CFH* (LP Gas) For Gas Pressures of 1/2 psig
(3.4 kPa) or Less
Equivalent Length of Standard Pipe Fittings & Valves (ft)
Specific Gravity Correction Factors
Min./Max. Inlet Gas Pressure Ratings
Boiler Current Draw
Natural Gas Typical Combustion Readings (Sea Level Only)
LP Gas (Propane) Typical Combustion Readings (Sea Level Only)
Approximate Clockwise Throttle Screw Turns for LP Gas (Propane) Conversion
Approximate Counter-Clockwise Throttle Screw Turns from Fully Closed Position, Natural Gas
Approximate Counter-Clockwise Throttle Screw Turns from Fully Closed Position, LP Gas
(Propane)
Field Wiring Checklist
Control Parameter Checklist
Order of Priority
Limit String
Frost Protection
Setpoints
Hydronic System
Comfort Settings
Response Speed
Sequence of Operation
Response Speed Adjustment Guidelines
Parameters Summary
Multiple Boiler Setup Procedure
Energy Management System Setup Procedure
Modbus Register List
Pump Status Codes
Soft Lockout (Hold) Codes
Hard Lockout Codes
Sensor Fault Diagnostic Help
Supply and Flue Sensor Temperature vs. Resistance, 10kOhm NTC, Beta = 3977K
Return Sensor Temperature vs. Resistance, 12kOhm NTC, Beta = 3750K
APEX Installation, Operating, & Service Instructions
157