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