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NOTE: When replacing a control, cut off old compression
fitting and replace with new compression fitting pro-
vided on new combination gas control. Never use old
compression fitting as it mav not cwovide a aas-tiaht
GAS
CONTROL
TIGHTEN NUT ONE TURN
BODY
(INLET
)
BEYOND
E N D
FITTING BREAKS OFF
AND CLINCHES TUBING
AS NUT IS TIGHTENED
FIG. 8-ALWAYS USE NEW COMPRESSION FITTING.
4. Push tubing into pilot gas tapping on outlet end of
the control until it bottoms. While holding tubing all the
way in, slide fitting into place and engage threads. Turn
until finger tight. Then tighten one more turn with wrench.
Do not overtighten.
TABLE 5—MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES
COUPLE
LENGTH
in.
m
18
0.5
24
0.6
30
0.8
36
0.9
48
1.2
72
1.8
TABLE 6—MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES
COUPLE
L E N G T H
in.
m
12
0.3
18
0.5
24
0.6
30
0.8
36
0.9
40
1.0
48
1.2
60
1.5
FINGER
TIGHT
TO
PILOT
BURNER
WHEN USING Q340A THERMOCOUPLE.
MAXIMUM LEADWIRE LENGTH X 2 (wires)
AWG NO. 14
in.
m
35
0.9
29
0.7
23
0.6
17
0.4
DO NOT USE.
WHEN USING Q309A THERMOCOUPLE.
MAXIMUM LEADWIRE LENGTH X 2 (wires)
AWG NO. 14
in.
m
47
1.2
41
1.0
35
0.9
29
0.8
23
0.6
19
0.5
11
0.3
DO NOT USE.
7
5. Connect other end of tubing to pilot burner accord-
ing to pilot burner manufacturer's instructions.
CONNECT THERMOCOUPLE (24V, 10OV, 120V, and
The thermocouple connection to the power unit or
ECO connector (Figs. 6 and 7) is an electrical connection
and must be clean and dry. Never use pipe compound.
Tighten only 1/4 turn beyond finger tight to give good
electrical continuity.
CONNECT ECO (Standard capacity 24V, 10OV, 120V,
and 220/240 models)
If the ECO is provided, the leadwires must be
equipped with insulated 1/4 in. female quick-connect ter-
minals. Leadwire lengths must not exceed the lengths
shown in Tables 5 and 6. Connect the high-limit or ECO
If ECO is not provided, connect a Q313B thermopile
generator in place of the thermocouple to act as the high-
AWG NO. 16
in.
m
22
0.6
18
0.5
15
0.4
11
0.3
AWG NO. 16
in.
m
30
0.8
26
0.7
22
0.6
18
0.5
15
0.4
12
0.3
7
0.2
AWG NO. 18
in.
m
13
0.3
11
0.3
9
0.2
6
0.2
AWG NO. 18
in.
m
18
0.5
16
0.4
14
0.4
0.3
9
0.2
7
0.2
60-2019-7
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