PB Heat MIH manual Table of Contents

TABLE OF CONTENTS

TABLE OF CONTENTS

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