
3.CONDENSATION
Following a cold start, condensation (sweating) may occur in a gas fired boiler to such an extent that it
appears that the boiler is leaking. This condensation can be expected to stop after the boiler is hot.
CONTROL VARIATIONS
NATURAL GAS
MODEL NO. | CONTROL | TYPE OF | GAS VALVES |
| OPTIONAL MAIN | REFERENCE | |
SYSTEM | PILOT | PILOT | MAIN | VALVES | PAGE | ||
| |||||||
EI | Elec. Ign. | (1) | (B) | 47 | |||
EI | Elec. Ign. | (1) | (2) V88A | (B)** | |||
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EO | Standing Q179D | (1) | (2) V88A | (A), (B) | 53 & 55 | ||
(USA & CANADA) | |||||||
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EE | Elec. Ign. Q179C | (1) | (2) V88A | (A), (B)* | 57 & 58 | ||
(USA & CANADA) | |||||||
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EOP | Standing Q179D | (1) | (2) V88A | (A), (B) | 60 & 62 | ||
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EEP | Elec. Ign. Q179C | (1) | (2) V88A | (A), (B)* | 64 & 67 | ||
24V | Standing | (1) | (2) V88A | (A), (B) | 69 | ||
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24V | Standing | (1) | (2) V88A | (A), (B) | 70 | ||
LP GAS |
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MODEL NO. | CONTROL | TYPE OF | GAS VALVES |
| OPTIONAL MAIN | REFERENCE | |
SYSTEM | PILOT | PILOT | MAIN | VALVES | PAGE | ||
| |||||||
EI | Elec. Ign. | (1) |
| 47 | |||
|
|
|
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| |
EO | Standing Q179D | (1) | (2) V88A | (A) | 53 & 55 | ||
EO | Standing Q179D | (1) | (2) V88A | 53 & 55 | |||
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EOP | Standing Q179D | (1) | (2) V88A | 60 & 62 |
(A)
(B)
*
**
1. For Steam or Water
2.For 24V Thermostat Application - Wire RA89A Relay in Place of Operating Control Set Thermostat Heat Anticipator at 0.4 Amp. See Pages 47, 48 and 49.
3.All Battery Operated Thermostats must be Electrically Isolated From the Primary Circuit by an Isolating Relay.
45