Teledyne EHE warranty 2L-2. Start-up, 2L-3. Condensate, 2L-4. Gas Pressure

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continued water flow and satisfactory operation of the system.

9.When the FlexTemp control stops calling for heat, the ignition control shuts off the gas valve and the flame goes out.

10.The ignition control continues to operate the combustion blower for a “post-purge” period, after which it is turned off.

The process is repeated upon the next call for heat. If ignition is unsuccessful, or if the flame fails during normal operation, the ignition shuts off the gas valve. It imposes a post purge and two more ignition cycles, and it shuts down the system if ignition is not achieved in three cycles.

2L-2. Start-up

Before operating the heater, pour water into the condensate tray and verify that it drains properly. Confirm that pool water is flowing normally through the pool system and equipment. Start the heater in accordance with the Operating Instructions section of this manual, with particular attention to the lighting and shutdown instructions and temperature control operation.

The heater may not start on the first try. Air in the gas line or other start-up situations may cause it to recycle. It will lock out if ignition is not achieved in three attempts. To provide three additional attempts, turn the pool/spa selector switch off and then back on.

When the heater starts, immediately feel the outlet header of the heater to confirm that there is adequate water flow. The header should not be hot. Normally, water temperature will rise only a few degrees as it passes through the heater, and a “hot” header or pipe indicates low water flow.

WARNING

When the heater is fired for the first time, the combustion chamber refractory binder material is driven out by the heat of the flame. White smoke and/or sharp odors may be emitted from the vent during this period. Do not inhale combustion product fumes at any time, and especially when these fumes are being emitted. This “burn-in” period will last only a few minutes.

2L-3. Condensate

If there is no water in the condensate trap, the heater’s combustion blower will pull air into the lower drain hose and normal drainage of combustion condensate will not occur. This water will accumulate to blower inlet level and will (temporarily) be blown out of the vent. Eventually it will drain back to the tray

and will "prime" the trap. To avoid this "wet" start-up, simply pour water into the tray before starting the heater, as indicated earlier.reach the blower and will (temporarily) be blown into the vent and may be thrown into the air around the heater.

2L-4. Gas Pressure

Confirm that gas supply pressure is correct. Measure it at the heater by connecting a manometer to the supply pressure port on the inlet side of the gas valve. With the heater firing, the pressure must be within the range shown in Table 4. Also check the pressure with the heater off.

Checking of gas pressure at the outlet of the gas valve requires knowledge of the venturi system of the Hi-E2 pool heater. Do not attempt to adjust this pressure without thorough understanding of its operation and settings, as outlined in the maintenance section of this manual.

2L-5. Adjustment of Water Pressure Switch

The pressure switch is pre-set at the factory for normal pool installations. Do not adjust it unless the heater water connections are more than three feet above or below the pool surface. If they are not in this range, the pressure switch must be adjusted. This can be done in the field if the water connections are no more than six feet above the pool surface and no more than ten feet below it. For other situations, contact a Teledyne Laars representative.

Caution

The pressure switch should be adjusted to turn the heater off when the pump is off. Setting the switch to close at too low of a flow can damage the appliance.

Pry off cap

to adjust

Figure 23. Adjustment of Pressure Switch.

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Contents Installation Hi-E2 Model EHE Gas-Fired Pool Spa Heater Table of Contents Installation Instructions General Information2B. Heater Assembly and Preparation 2D. Installation Clearances2E. Outdoor Installation Installation at High Elevation2F. Outdoor Shelter Installation Canada 2G. Indoor Installation2G-1. Preparation of Heater For Indoor Installation United States2G-2. Combustion Air Requirements for One-Pipe Installation 2G-3. Two-Pipe Installation Direct Vent2G-3a. Connection of Combustion Air Pipe 2G-3b. Piping Materials2G-3d. Combustion Air and Vent Pipe Installation2G-3c. Size and Length of Combustion Air and Vent Piping Indoor Vent Connection, Hi-E2 Pool Heater 2G-3e. Room Ventilation 2H. Condensate Disposal2I. Gas Supply and Piping High Elevation 60Hz2J. Electric Wiring 2J-1. Electrical Power2J-3. Auxiliary Time Clock Wiring 2J-2. Bonding2K-1. Reversal of Heater Water Connections 2K. Water Piping2K-3. Connections at Heater 2K-4. Pressure Relief Valve 2K-5. Automatic Chlorinators Chemical Feeders2L. Start-up and Adjustment 2L-1. Normal Operation2L-5. Adjustment of Water Pressure Switch 2L-2. Start-up2L-3. Condensate 2L-4. Gas Pressure2L-6. Water Temperature Rise Operating Instructions3A. Start-Up Procedure 3B. Temperature Controls3C. Lighting and Shutdown 3D. Water Chemistry3E. Spa/Hot Tub Safety Rules 3D-2d. Testing3F. Swimming Pool Energy Savings Tips 3D-2c. Corrosion3G. Seasonal Care 3H. Periodic Inspection3G-1. Spring and Fall Operation 3G-2. Winterizing4A. General Maintenance and Service3H-2. Professional Inspection 4B. Induced-Draft Combustion System 4C. Heater Components and Their Operation4E-1 V Electrical Power Supply 4E. Electrical Trouble Shooting4D. Combustion Air Filter 4E-2a. Transformer 4E-2. Control Circuit Trouble Shooting4E-2b. Fuse 4E-2c. Fireman Switch and External Interlocks 4E-2d. Limit Switches4E-2e. Water Pressure Switch 4E-2f. Temperature Control4F. Venturi Combustion Flow System 4F-2. Venturi System Checkout 4F-2a. Unfired Venturi Differential Pressure4F-2b. Gas Pressure Offset 4F-2c. Gas Orifice Differential4F-3. Air Flow Investigation 4F-3a. Combustion Air Flow4G. Combustion Condensate 4F-3b. Flow in Heater and Vent4F-4. Fuel Gas Type and Gas Orifice Size 4F-5. High Elevation Operation4H. Major Component Service Capacities and Dimensions5A. General Information Replacement Parts 6A. Parts ListExploded View of the Hi-E2 Limited Warranty