Table of Contents

SECTION 1
General Information
1A	Introduction	1
1B	Description	1
1C	Warranty	1
SECTION 2
Installation Instructions
2A	General Requirements	1
2B	Heater Assembly and Preparation	2
2C	Heater Location	2
2D	Installation Clearances	2
2E	Outdoor Installation	2
2F	Outdoor Shelter Installation (Canada)	3
2G	Indoor Installation	3
2G-1	Preparation of Heater For
	Indoor Installation	3
2G-2	Combustion Air Requirements for
	One-Pipe Installation	4
2G-3	Two-Pipe Installation (Direct Vent)	4
2G-3a	Connection of Combustion Air Pipe	4
2G-3b	Piping Materials	4
2G-3c	Size and Length of Combustion
	Air and Vent Piping	5
2G-3d	Combustion Air and Vent Pipe Installation	5
2G-3e	Room Ventilation	7
2H	Condensate Disposal	7
2I	Gas Supply and Piping	8
2J	Electric Wiring	10
2J-1	Electrical Power	10
2J-2	Bonding	10
2J-3	Auxiliary Time Clock Wiring	10
2J-4	Remote Operation	10
2K	Water Piping	11
2K-1 Reversal of Heater Water Connections		11
2K-2	Pool/Spa Piping Systems	11
2K-3	Connections at Heater	11
2K-4	Pressure Relief Valve	12
2K-5 Automatic Chlorinators (Chemical Feeders)		12
2L	Start-Up and Adjustment	13
2L-1	Normal Operation	13
2L-2	Start-Up	14
2L-3	Condensate	14
2L-4	Gas Pressure	14
2L-5	Adjustment of Water Pressure Switch	14
2L-6	Water Temperature Rise	15
SECTION 3
Operating Instructions
3A	Start-Up Procedure	16
3B	Temperature Controls	16
3C	Lighting and Shutdown	17
3C-1	Lighting the Heater	17
3C-2	Shutdown	17
3D	Water Chemistry	17
3D-1	Pools	17

3D-2	Spas	17
3D-2a	Spa Water Chemistry	17
3D-2b	Water Changing	17
3D-2c	Corrosion	18
3D-2d	Testing	18
3E	Spa/Hot Tub Safety Rules	18
3F	Swimming Pool Energy Saving Tips	18
3G	Seasonal Care	19
3G-1 Spring and Fall Operation		19
3G-2	Winterizing	19
3H	Periodic Inspection	19
3H-1	Owner Inspection	19
3H-2	Professional Inspection	20
SECTION 4
Maintenance and Service
4A	General	20
4B	Induced-Draft Combustion System	21
4C	Heater Components and Their Operation	21
4D	Combustion Air Filter	22
4E	Electrical Trouble Shooting	22
4E-1	115V Electrical Power Supply	22
4E-2	Control Circuit Trouble Shooting	23
4E-2a	Transformer	23
4E-2b	Fuse	23
4E-2c Fireman Switch and External Interlocks		24
4E-2d	Limit Switches	24
4E-2e Water Pressure Flow Switch		24
4E-2f	Temperature Control	24
4E-2g	Venturi Pressure Switch	24
4E-2h	Ignition Control	24
4E-2i	Burner Limit Switch	25
4E-2j	Vent Limit Switch	25
4E-2k	Combustion Blower	25
4E-2l	Igniter	25
4F	Venturi Combustion Flow System	25
4F-1	Pressure Measurement Ports	25
4F-2	Venturi System Checkout	26
4F-2a Unfired Venturi Differential Pressure		26
4F-2b	Gas Pressure Offset	26
4F-2c	Gas Orifice Differential	26
4F-3	Air Flow Investigation	27
4F-3a	Combustion Air Flow	27
4F-3b Flow in Heater and Vent		28
4F-4	Fuel Gas Type and Gas Orifice Size	28
4F-5	High Elevation Operation	28
4G	Combustion Condensate	28
4H	Major Component Service	29
SECTION 5
Capacities and Dimensions
5A	General Information	29

SECTION 6

Replacement Parts

6A.

General Information

Teledyne EHE warranty Table of Contents