Installation Instructions

Owner's Guide
Page
58
Parts List
Item # Description Part #
701 Computer board EK480
702
703
704
Rubber grommet
Surge box
120 VAC wire
EX148
EK280
EK146
705
707
120 VAC Power ON-OFF switch
Gas valve wire
EKK4V
EK482
708
709
Flame rod wire
Igniter assembly
EK483
EK484
710 Freeze protection thermostat EKJ59
711
712
713
714
Proportional gas valve wire
Nylon clamp FC6
Computer board cover
Cable clamp
EK112
EX004
EKK1M
EX13C
715
716
Exhaust thermistor
Exhaust Hi-limit switch wire
EKH6E
EK180
721
722
Temperature controller
Fixing plate
EK487
EK490
OUTPUT TEMPERATURE CHART
Chart is based on properly sized gas line.
3
4
5
6
7
8
Boiler Flow-GPM
100 110 120 130 140
Boiler Temp vs Flow Rate with 70 Deg F Return Fluid
DEG F