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Flue Sensor
An optional Flue Sensor 069 can be installed on the boiler flue to measure the flue gas temperature . It is not
possible to have both a flue sensor and an indoor sensor installed at the same time as they share the same
auxiliary sensor input .
• Connect the wires to the Aux sensor terminals 8 and 9 .
Indoor Sensor
An optional Indoor Sensor 076, 077, or 084 can be installed to measure the ambient temperature in a hallway
or apartment unit . It is not possible to have both a flue sensor and an indoor sensor installed at the same time
as they share the same auxiliary sensor input .
• Connect the wires to the Aux sensor terminals 8 and 9 .
Testing the Sensor Wiring
A good quality test meter capable of measuring up to 5,000 kΩ
(1 kΩ = 1000 Ω) is required to measure the sensor resistance .
In addition to this, the actual temperature must be measured
with either a good quality digital thermometer, or if a thermom-
eter is not available, a second sensor can be placed alongside
the one to be tested and the readings compared .
First measure the temperature using the thermometer and
then measure the resistance of the sensor at the control .
The wires from the sensor must not be connected to the con-
trol while the test is performed . Using the chart below, estimate
TEMPERATURE
RESISTANCE
Ω
°F
°C
-50
-46
490,813
-45
-43
405,710
-40
-40
336,606
-35
-37
280,279
-30
-34
234,196
-25
-32
196,358
-20
-29
165,180
-15
-26
139,403
-10
-23
118,018
-5
-21
100,221
0
-18
85,362
5
-15
72,918
10
-12
62,465
15
-9
53,658
Call customer service if you need assistance with technical details .
TEMPERATURE
RESISTANCE
Ω
°F
°C
20
-7
46,218
25
-4
39,913
30
-1
34,558
35
2
29,996
40
4
26,099
45
7
22,763
50
10
19,900
55
13
17,436
60
16
15,311
65
18
13,474
70
21
11,883
75
24
10,501
80
27
9,299
85
29
8,250
Ref In Gnd
Pressure Sens
1
2 3
Ref In Gnd
Pressure Sens
1
2 3
For product literature:
Pour la documentation
du produit:
tekmarControls.com
tektra 1150-02
Designed and assembled
in Canada
the temperature measured by the sensor . The sensor and
thermometer readings should be close . If the test meter reads
a very high resistance, there may be a broken wire, a poor
wiring connection or a defective sensor . If the resistance is very
low, the wiring may be shorted, there may be moisture in the
sensor or the sensor may be defective . To test for a defective
sensor, measure the resistance directly at the sensor location .
Do not apply voltage to a sensor at any time as damage
For product literature:
to the sensor may result.
Pour la documentation
du produit:
H2065A
tekmarControls.com
tektra 1150-02
Designed and assembled
in Canada
TEMPERATURE
RESISTANCE
Ω
°F
°C
90
32
7,334
95
35
6,532
100
38
5,828
105
41
5,210
110
43
4,665
115
46
4,184
120
49
3,760
125
52
3,383
H2065A
130
54
3,050
135
57
2,754
140
60
2,490
145
63
2,255
150
66
2,045
155
68
1,857
Outdoor
Cond
Aux
DHW
Sensor
Sensor
Sensor
+
Call
4
5
6
7
8
9
10
11
Outdoor
Cond
Aux
DHW
Sensor
Sensor
Sensor
+
Call
4
5
6
7
8
9
10
TEMPERATURE
RESISTANCE
Ω
°F
°C
160
71
1,689
165
74
1,538
170
77
1,403
175
79
1,281
180
82
1,172
185
85
1,073
190
88
983
195
91
903
200
93
829
205
96
763
210
99
703
215
102
648
220
104
598
225
107
553
Class
Class
11
S
S
9
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