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TABLE OF CONTENTS
A. INSTALLATION SEQUENCE . . . . . . . . . . . . . . . . . . . . . . .2
B. SPECIAL ATTENTION BOXES . . . . . . . . . . . . . . . . . . . . .2
1.
A. ACCESSIBILITY CLEARANCES . . . . . . . . . . . . . . . . . . . .3
CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
C. AIR FOR COMBUSTION AND VENTILATION . . . . . . . . .3
D. PLANNING THE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . .6
2.
3.
A. BOILER SUPPLY AND RETURN . . . . . . . . . . . . . . . . . . . .7
B. SAFETY RELIEF VALVE . . . . . . . . . . . . . . . . . . . . . . . . . .8
C. PIPING FOR ZONED SYSTEMS . . . . . . . . . . . . . . . . . . . .9
D. EXPANSION TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
E. INDIRECT-FIRED WATER HEATER . . . . . . . . . . . . . . . . .10
F. FREEZE PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.
A. INTEGRAL DRAFT HOOD . . . . . . . . . . . . . . . . . . . . . . . .11
B. VENT DAMPER INSTALLATION GENERAL . . . . . . . . . .11
C. VENT PIPING AND CHIMNEY . . . . . . . . . . . . . . . . . . . .12
VENTING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5.
6.
A. WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
B. ZONED SYSTEM WIRING . . . . . . . . . . . . . . . . . . . . . . .15
C. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
D. SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . .16
7.
A. COMPLETING THE INSTALLATION . . . . . . . . . . . . . . . .20
B. CONTROL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . .24
C. ADJUSTMENT OF GAS PRESSURE REGULATOR . . . .24
D. ADJUSTMENT OF PILOT GAS FLOW . . . . . . . . . . . . . .24
E. CHECKING BURNER INPUT . . . . . . . . . . . . . . . . . . . . . .25
F. CHECK-OUT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . .25
8.
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
B. TROUBLESHOOTING GUIDES . . . . . . . . . . . . . . . . . . . .27
2
11
13
15
20
27
9.
A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
B. DAILY (WITH BOILER IN USE) . . . . . . . . . . . . . . . . . . . .31
C. WEEKLY (WITH BOILER IN USE) . . . . . . . . . . . . . . . . . .31
D. MONTHLY (WITH BOILER IN USE) . . . . . . . . . . . . . . . .31
2
SEASON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
3
A. BASE/COMBUSTIBLE FLOOR PAN . . . . . . . . . . . . . . . .34
B. MANIFOLD/GAS TRAIN . . . . . . . . . . . . . . . . . . . . . . . . .35
C. BLOCK/DRAFT HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . .37
D. JACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
E. CONTROLS/CIRCULATOR/VENT DAMPER . . . . . . . . . .39
6
7
USING THIS MANUAL
A. INSTALLATION SEQUENCE
Follow the installation instructions provided in this
manual in the order shown. The order of these
instructions has been set in order to provide the
installer with a logical sequence of steps that will
minimize potential interferences and maximize safety
during boiler installation.
B. SPECIAL ATTENTION BOXES
Throughout this manual you will see special attention
boxes intended to supplement the instructions and
make special notice of potential hazards. These
categories mean, in the judgment of Hydrotherm.:
Indicates a condition or hazard which will cause
severe personal injury, death or major property
damage.
Indicates a condition or hazard which may cause
severe personal injury, death or major property
damage.
Indicates a condition or hazard which will or can
cause minor personal injury or property damage.
Indicates special attention is needed, but not directly
related to potential personal injury or property
damage.
DANGER
WARNING
CAUTION
NOTICE
30
33
34
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