LAARS Mighty Therm VW (Sizes 2000-5000) - Installation, Operation and Maintenance Instructions - Manual (Page 2)

LAARS Heating Systems
Page 2
TABLE OF CONTENTS
SECTION 1.
General Information
1.1 Introduction ................................................... 3
1.2 Flow Requirements ....................................... 3
1.3 Water Chemistry ........................................... 4
SECTION 2.
Installation
2.1 Heater Placement ......................................... 4
2.2 Indoor Installation ......................................... 4
2.2.1 Combustion Air Supply ................................. 4
2.2.2 Venting ......................................................... 5
2.3 Installation of Outdoor Heater ....................... 6
2.4 Gas Supply and Piping ................................. 6
2.5 Electrical Wiring ............................................ 8
2.6 Water Piping of System ................................ 8
2.7 Water Expansion .......................................... 8
2.8 Pump Installation .......................................... 9
2.9 Tank Installation ........................................... 9
2.10 Water Pressure .......................................... 10
SECTION 3.
Operation
3.1 Initial Start Up ............................................. 12
3.2 To Start Up System .................................... 12
3.3 To Turn Off Heater ..................................... 13
3.4 To Shut Down System ................................ 13
SECTION 4.
Maintenance
................................................................... 13
SECTION 5.
Troubleshooting and Analysis of
Service Problems
................................................................... 14
SECTION 6.
Conversion of VW from Indoor
to Outdoor Models
6.1 Conversion Procedure ................................ 16
6.1.1 Section I ...................................................... 16
6.1.2 Section II ..................................................... 16
SECTION 7.
Parts Description and Order Numbers
7.1 General Information .................................... 19
7.2 Parts List .................................................... 19