User Manual

59
CHECKLIST — DIRECT VENT (2---PIPE) INSTALLATION
LOAD CALCULATION
________________ Heating Load (Btuh) Condensate Drain
________________ Cooling Load (Btuh) ________________ Unit Level or Pitched Forward
________________
Furnace Model Selection
________________ Internal Tubing Connections
Free of Kinks and Traps
COMBUSTION AND VENT PIPING
________________ External Drain Connection Leak
Tight and Sloped
Termination Location
________________ Condensate Trap Primed before
S t a r t --- U p
________________ Roof or Sidewall Heat Tape Installed if Required
________________ Termination Kit --- 2 Pipe or Con-
centric
C H E C K L I S T --- S T A R T --- U P
________________
C o m b u s t i o n --- A ir P i p e L e n g t h
________________ Gas Input Rate (Set Within 2
percent of Rating Plate)
________________ Combustion---Air Pipe Elbow
Quantity
________________
TemperatureRiseAdjusted
________________ Vent Pipe Length Thermostat Anticipator
________________ Vent Pipe Elbow Quantity ________________ Anticipator Setting Adjusted or
________________ Pipe Diameter Determined from
Sizing Table
________________ Cycle Rate (3 Cycles per Hr)
Selected
________________ Pipe Sloped To Furnace Safety Controls Check Operation
P i p e I n s u l a t i o n C H E C K L I S T --- S T A R T --- U P
________________
Over Ceilings
________________ Gas Input Rate (Set Within 2
percent of Rating Plate)
________________ Low--- Ambient Exposed Pipes ________________ Temperature Rise Adjusted
Thermostat Anticipator
________________ Anticipator Setting Adjusted or
________________ Cycle Rate (3 Cycles per Hr)
Selected
Safety Controls Check Operation
________________ Primary Limit
________________ Pressure Switches
355A