Honeywell Q179B ユーザーズマニュアル

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Q179A,B GAS PILOT BURNER ASSEMBLIES
60-2032—4
4
a
On some ground areas, one or more prongs were intentionally removed at the factory.
b
Orifice 0.025 in. (0.635 mm) diameter.
c
Orifice 0.0130 in. (0.330 mm) diameter (order separately).
d
Orifice 0.028 in. (0.711 mm) diameter.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow them 
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the 
product to make sure the product is suitable for your 
application.
3. Installer must be a trained, experienced, flame safeguard 
control technician.
4. After installation is complete, check out product opera-
tion as provided in these instructions.
Follow instructions provided by burner manufacturer if 
available. If no instructions are furnished, use the following 
recommendations.
Mounting
The Q179 has two mounting ears at the burner and two 
mounting holes in the bracket (see Fig. 2). If the mounting 
holes in the bracket are used, it may be necessary to break off 
one of the mounting ears so that the bracket fits flush with the 
burner.
All models are supplied with a factory-installed 1/4 inch 
compression coupling inlet fitting. When a fitting is used, 
remove the compression nut and install the new fitting.
Gas Pressure Regulation
Use a pressure regulator in the line supplying the Q179 pilot. 
Adjust the regulator for a maximum inlet gas pressure of eight 
inches water column. The minimum inlet gas pressure must be 
two inches water column to assure reliable lightoff of the main 
flame.
Install the Q179A,B
Install the pilot assembly so the pilot flame has full contact with 
the gas stream from the main burner heads or jets. Mount the 
flame electrode just inside the junction of the main and pilot 
flame to prove both flames. Mount the pilot so that it fires in the 
same direction as the draft at the mounting point, rather than 
where the draft is at right angles to flame travel. Keep the pilot 
burner below or behind the main burner so that the burner 
frame and refractory will help protect the pilot from radiant 
heat. Locating the pilot in the secondary air stream will also 
provide considerable cooling. The primary air adjustment must 
be accessible and outside the high temperature area.
Do Not Install the Q179A,B—
— Where ambient temperatures exceed those specified in 
Fig. 3.
— Where excessive draft turbulence can deflect the pilot 
flame away from the main burner or flame electrode.
— Where the ignition electrode is within arcing distance of 
any metal other than the pilot burner head.
— Where the flame electrode contacts any metal part of 
the installation.
— Where the flame electrode is closer than one inch from 
a radiant refractory.
WIRING
CAUTION
Disconnect power supply to prevent electrical 
shock and equipment damage. More than one 
disconnect may be involved. Wiring must conform 
to local codes and ordinances.
Rajah connectors are furnished for making connections to the 
ignition and flame electrodes. The ignition electrode (A models 
only) takes a receptacle connector. The flame electrode (both 
A and B models) takes a plug connector and has a snap-action 
spring terminal.
Table 1. Additional Q179A, B Replacement Parts
Assembly Tip Style
Tip
Ground and 
Ground Shield
a
Orifice
Flame Rod and 
Insulator Assembly
Natural Gas
LP Gas
I
105063A
102464A
395390-25
b
395390-13
c
133448A
45° I
105064A
102464B
395390-25
b
133450A
45° RH
105066A
120464D
395390-25
b
133452A
45° LH
105067A
102464D
395390-25
b
133444A
T
105068A
102464F
395390-28
d
133451A
45° Y
105069A
102464C
395390-28
d
133446A
45° T
105070A
102464H
395390-28
d
133452A
Large I
121831A
102464A
395390-25
b
133448A