MC Series Gas-Fired Circulating Heater - Heat Transfer Products, Inc
MC Series Gas-Fired Circulating Heater - Heat Transfer Products, Inc
MC Series Gas-Fired Circulating Heater - Heat Transfer Products, Inc
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4<br />
The latest version of the National Electrical Code, NFPA No. 70.<br />
NOTE: The gas manifold and controls met safe lighting and other performance criteria when undergoing tests specified in ANSI<br />
Z21.10.3 – latest edition.<br />
The hydronic supply and return connections of these products are for installation in closed loop systems ONLY! Use of this<br />
product in any manner other than described in this manual may result in premature product failure, substantial property damage, severe<br />
personal injury, or death. Damage or failure of this product (or the system in which it is installed) due to unauthorized use IS NOT<br />
COVERED BY WARRANTY.<br />
TABLE OF CONTENTS<br />
PART 1 – GENERAL SAFETY INFORMATION .......................................................................................................................... 6<br />
A. PRECAUTIONS .......................................................................................................................................................................... 6<br />
B. IMPROPER COMBUSTION ........................................................................................................................................................ 7<br />
C. GAS ............................................................................................................................................................................................ 7<br />
D. WHEN SERVICING THE HEATER ............................................................................................................................................. 7<br />
E. HEATER SYSTEM ...................................................................................................................................................................... 7<br />
F. WATER CHEMISTRY* ................................................................................................................................................................ 7<br />
G. WINTERIZING ............................................................................................................................................................................ 8<br />
PART 2 – BEFORE YOU START ................................................................................................................................................ 8<br />
A. WHAT’S IN THE BOX ................................................................................................................................................................. 8<br />
B. HOW THE HEATER OPERATES ............................................................................................................................................... 8<br />
C. OPTIONAL EQUIPMENT ......................................................................................................................................................... 10<br />
PART 3 – PREPARE HEATER LOCATION .............................................................................................................................. 10<br />
A. BEFORE LOCATING THE HEATER ........................................................................................................................................ 10<br />
B. LEVELING ................................................................................................................................................................................ 11<br />
C. CLEARANCES FOR SERVICE ACCESS ................................................................................................................................. 12<br />
D. RESIDENTIAL GARAGE, CLOSET, AND ALCOVE INSTALLATIONS .................................................................................... 12<br />
E. EXHAUST VENT AND INTAKE PIPE ....................................................................................................................................... 13<br />
F. PREVENT COMBUSTION AIR CONTAMINATION .................................................................................................................. 13<br />
G. REMOVING AN EXISTING HEATER FROM AN EXISTING COMMON VENT SYSTEM ........................................................ 13<br />
PART 4 – PREPARE HEATER .................................................................................................................................................. 14<br />
A. REMOVE HEATER FROM BOX ............................................................................................................................................... 14<br />
B. WALL MOUNTING CONSIDERATIONS ................................................................................................................................... 14<br />
C. WALL MOUNTING INSTRUCTIONS ........................................................................................................................................ 14<br />
D. INSTALLATION STEPS ............................................................................................................................................................ 15<br />
PART 5 – HEATER PIPING ....................................................................................................................................................... 15<br />
A. GENERAL PIPING INFORMATION .......................................................................................................................................... 15<br />
B. RELIEF VALVE ......................................................................................................................................................................... 16<br />
C. SEPARATE LOW WATER CUTOFF ........................................................................................................................................ 17<br />
D. BACKFLOW PREVENTER ....................................................................................................................................................... 17<br />
E. SYSTEM WATER PIPING METHODS ..................................................................................................................................... 17<br />
LP-171 Rev. 10.2.13