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106375-01 - 4/16
Refer Section VII “Venting” to re-assemble any vent system components that are disassembled during this inspection and for
details on supporting, pitching, and terminating the vent system.
s.
Reconnect any wiring
which has been disconnected.
t.
Inspect the hydronic system
. Look for leaks and repair any found. If system contains antifreeze, or other additives,
test and/or maintain them as directed by the additive manufacturer. Refer to Section XI “Start-up and Checkout” for
important information on boiler water and the use of boiler water additives.
u.
Inspect air vent(s)
in hydronic piping. Ensure vents are unobstructed and properly functioning.
XIII. Service and Maintenance
(continued)
CAUTION
If burner comes on with no flow through the boiler. Turn the boiler off immediately. Failure to do so could
cause severe heat exchanger damage.
v.
Follow ALL instructions in
Section XI “Start-up and Checkout” to place the boiler back in service, including the
performance of a combustion test.
Outdoor Temperature
Ohms of
Resistance
°F
°C
-20
-28.9
106926
-10
-23.3
80485
0
-17.8
61246
10
-12.2
47092
20
-6.7
36519
30
-1.1
28558
40
4.4
22537
50
10.0
17926
60
15.6
14356
70
21.1
11578
76
24.4
10210
78
25.6
9795
80
26.7
9398
90
32.2
7672
100
37.8
6301
110
43.3
5203
120
48.9
4317
Outdoor Air Temperature Sensor
Temperature versus Resistance
(P/N 102946-01)
(10kOhm NTC Sensor)
Temperature
Ohms of
Resistance
°F
°C
32
0
32648
50
10
19898
68
20
12492
77
25
10000
86
30
8057
104
40
5327
122
50
3602
140
60
2488
158
70
1752
176
80
1256
194
90
916
212
100
697
248
120
386
Supply, Return and Stack Temperature Sensor
and Header Temperature Sensor
(P/N 101935-01 or 103104-01)
Temperature versus Resistance
(10kOhm NTC Sensor), Beta of 3950
