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LP-542 REV. 7.16.15

PART 4 – PREPARE BOILER LOCATION ............................................................................................................................... 14

A. UNCRATING THE BOILER ...................................................................................................................................................... 14

B. BEFORE LOCATING THE BOILER ......................................................................................................................................... 15

C. LEVELING ................................................................................................................................................................................ 16

D. CLEARANCES FOR SERVICE ACCESS ................................................................................................................................ 16

E. RESIDENTIAL GARAGE, CLOSET, AND ALCOVE INSTALLATIONS .................................................................................... 16

F. EXHAUST VENT AND INTAKE PIPE ....................................................................................................................................... 17

G. PREVENT COMBUSTION AIR CONTAMINATION ................................................................................................................. 17

H. REMOVING A BOILER FROM A COMMON VENT SYSTEM .................................................................................................. 17

I. WALL-MOUNTING THE BOILER .............................................................................................................................................. 18

PART 5 – VENTING ................................................................................................................................................................... 19

A. INTAKE PIPE AND EXHAUST VENT GUIDELINES ................................................................................................................ 19

B. APPROVED VENT MATERIALS .............................................................................................................................................. 21

C. ALLOWED COMBINED VENT LENGTHS ............................................................................................................................... 21

D. TIGHTENING BOILER COLLAR TO EXHAUST VENT AND INTAKE PIPE ............................................................................ 22

E. VENT TERMINATION .............................................................................................................................................................. 23

1. Two Pipe Roof and Sidewall Vent Terminations ..................................................................................................................... 23

2. Direct Vent, Optional Horizontal and Vertical Vent Kits ......................................................................................................... 24

3. Snorkel Venting ......................................................................................................................................................................... 25

4. Screen Installation ..................................................................................................................................................................... 26

PART 6 – INSTALL THE CONDENSATE DRAIN ..................................................................................................................... 26

PART 7 – GAS PIPING .............................................................................................................................................................. 27

A. ADDITIONAL PRECAUTION FOR EXCESS FLOW VALVE (EFV) ......................................................................................... 28

B. GAS PIPE SIZING TABLES ..................................................................................................................................................... 28

1. Gas Pipe Sizing .......................................................................................................................................................................... 28

2. Natural Gas Pipe Sizing ............................................................................................................................................................ 28

3. LP (Liquid Propane) Gas Pipe Sizing ....................................................................................................................................... 28

C. GAS CONNECTION REQUIREMENTS ................................................................................................................................... 29

PART 8 – WATER PIPING ........................................................................................................................................................ 30

A. GENERAL PLUMBING CONNECTION GUIDELINES ............................................................................................................. 30

B. BACKFLOW PREVENTER ....................................................................................................................................................... 31

C. CENTRAL HEATING PIPING SYSTEM WATER PIPING METHODS ..................................................................................... 31

D. CIRCULATOR SIZING ............................................................................................................................................................. 31

E. CH PRESSURE RELIEF VALVE .............................................................................................................................................. 37

F. BUILT-IN LOW WATER CUT-OFF (LWCO) ............................................................................................................................. 37

G. OPTIONAL EXTERNAL UL353 MANUAL RESET LOW WATER CUT-OFF (LWCO) INTERFACE KIT ................................. 37

PART 9 – CONNECT ELECTRICAL POWER / INITIAL STARTUP ......................................................................................... 38

A. GENERAL OPERATING CONDITIONS ................................................................................................................................... 38

B. WIRING INFORMATION .......................................................................................................................................................... 38

C. DIP SWITCHES ....................................................................................................................................................................... 39

Brand	HTP
Model	UFT-100W
Category	Boiler
Language	English

HTP UFT-100W User Manual

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