PB Heat MI/MIH series User Manual
Page 2
USING THIS MANUAL
1
A. INSTALLATION SEQUENCE . . . . . . . . . . . . .1
B. SPECIAL ATTENTION BOXES . . . . . . . . . . . .1
1.
PREINSTALLATION
2
A. ACCESSIBILITY CLEARANCES . . . . . . . . . . .2
B. CLEARANCE FROM COMBUSTIBLE
CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . .2
C. AIR FOR COMBUSTION AND
VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . .2
D. INSTALLATION SURVEY . . . . . . . . . . . . . . . .5
E. PLANNING THE LAYOUT . . . . . . . . . . . . . . . .5
2.
BOILER SET-UP
6
3.
WATER PIPING AND CONTROLS
7
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.
VENTING
11
A. INTEGRAL DRAFT HOOD . . . . . . . . . . . . . .11
B. VENT DAMPER INSTALLATION –
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . .11
C. VENT PIPING AND CHIMNEY . . . . . . . . . . .12
D. BOILER REMOVAL FROM COMMON
VENTING SYSTEM . . . . . . . . . . . . . . . . . . .13
5.
GAS PIPING
14
6.
ELECTRICAL
16
A. WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
B. ZONED SYSTEM WIRING . . . . . . . . . . . . . .16
C. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . .16
D. SEQUENCE OF OPERATION . . . . . . . . . . . .17
7.
START-UP PROCEDURES
21
A. COMPLETING THE INSTALLATION . . . . . . .21
B. CONTROL DESCRIPTIONS . . . . . . . . . . . . .25
C. ADJUSTMENT OF GAS PRESSURE
REGULATOR . . . . . . . . . . . . . . . . . . . . . . . . .25
D. ADJUSTMENT OF PILOT GAS FLOW . . . . .25
E. CHECKING BURNER INPUT . . . . . . . . . . . . .26
F. CHECK-OUT PROCEDURE . . . . . . . . . . . . . .26
8.
TROUBLESHOOTING
28
A. SHUT-DOWN CAUSED BY PILOT OUTAGE,
BLOCKED VENT SHUT-OFF SWITCH OR
FLAME ROLL-OUT SAFETY SHUT-OFF
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
B. TROUBLESHOOTING GUIDES . . . . . . . . . .28
9.
MAINTENANCE
31
A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . .32
B. DAILY (WITH BOILER IN USE) . . . . . . . . . . .32
C. WEEKLY (WITH BOILER IN USE) . . . . . . . . .32
D. MONTHLY (WITH BOILER IN USE) . . . . . . .32
E. ANNUALLY (BEFORE START OF HEATING
SEASON) . . . . . . . . . . . . . . . . . . . . . . . . . . .33
10. BOILER DIMENSIONS & RATINGS
34
11. REPAIR PARTS
35
A. BASE/COMBUSTIBLE FLOOR PAN . . . . . . .35
B. MANIFOLD/GAS TRAIN . . . . . . . . . . . . . . . .36
C. BLOCK/DRAFT HOOD . . . . . . . . . . . . . . . . .38
D. JACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
E. CONTROLS/CIRCULATOR/VENT
DAMPER . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
TABLE OF CONTENTS
TABLE OF CONTENTS