50
Page
Item #
Descrip
tion
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 prot
ection
thermostat
EKJ59
711
712
713
714
Pr
oportional
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
100
105
110
115
120
125
130
135
140
40
3.8
3.5
3.2
3.0
2.8
2.7
2.5
2.4
2.3
50
4.6
4.1
3.8
3.5
3.3
3.0
2.9
2.7
2.5
60
5.7
5.1
4.6
4.1
3.8
3.5
3.3
3.0
2.9
70
7.0
6.4
5.6
5.0
4.5
4.1
3.8
3.5
3.2
0.0
2.0
4.0
6.0
8.0
40
50
60
70
Output Temperature vs. GPM ( Max. 7.0 GPM ) with Various Inlet Water Temperature
Output Hot Water GPM
Set Temp. (°F)
In
co
m
in
g
Te
m
p.(
°F
)
Parts List
Owner's Guide
Summary of Contents for HS120CON-LP
Page 27: ......