LAARS Mighty Therm AP (Sizes 500-1825) - 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 Heater Identifi cation ....................................... 3
1.3 Primary/Secondary Pump and Piping ............ 3
1.4 Certifi cations .................................................. 3
1.5 Engineering Assistance ................................. 3
Section 2
Installation
2.1 Heater Placement .......................................... 4
2.2 Installation of Indoor Heaters ......................... 4
2.2.1 Combustion Air Supply .................................. 4
2.2.2 Venting ........................................................... 5
2.2.3 Common Venting System
Test Procedure .............................................. 6
2.2.3 Instructions Relatives au Test des
Systèmes à Évent Commun .......................... 6
2.3 Installation of Outdoor Heaters ...................... 7
2.4 Gas Supply and Piping .................................. 7
2.5 Electrical Wiring ............................................. 8
2.6 General Piping Instructions ........................... 9
2.7 Heater By-Pass Piping .................................. 9
2.8 Temperature Sensor Placement
and Installation .............................................. 9
2.9 Automatic Chlorinators ................................ 10
Section 3
Operation
3.1 Controls - General ....................................... 10
3.2 Initial Start-Up .............................................. 11
3.3 Safety Shutoff Component Checkout .......... 12
3.4 Inlet Temperature and
Temperature Rise Adjustment ..................... 13
3.5 Heater Shut Down ....................................... 13
3.6 Spring and Fall Operation
Stand-by Service ......................................... 13
3.7 Winter Operation Complete Shutdown ........ 14
3.8 Time Clock Operation .................................. 14
3.9 Therapeutic Pools (Spas) ............................ 14
Section 4
Maintenance
..................................................... 15
Section 5
Troubleshooting
............................................. 16
Section 6
Parts Description and Order Numbers
.. 18