Teledyne LLG, LLD dimensions 3G. Swimming Pool Energy Saving Tips, 3H. Periodic Inspection

Model LLG & LLD Pool and Spa Heater Page 19

drowsiness (e.g., tranquilizers, antihistamines, or anticoagulants) should not use spas or hot tubs.

7.Prolonged immersion in hot water can induce hyperthermia.

Hyperthermia occurs when the internal body temperature reaches a level several degrees above the normal body temperature of 98.6°F (37°C). Symptoms include dizziness, fainting, drowsiness, lethargy, and an increase in the internal body temperature. The effects of hyperthermia include:

•Lack of awareness of impending hazard

•Failure to perceive heat

•Failure to recognize need to leave spa

•Physical inability to leave spa

•Fetal damage in pregnant women

•Unconsciousness resulting in a danger of drown- ing

3G. Swimming Pool Energy Saving Tips

Teledyne Laars offers the following recommen- dations to help conserve fuel and minimize the cost of

Table 7. Mineral Concentration Levels

Test	Recommended Level
Free chlorine	1.0 to 3.0 ppm
Bromine	3.0 to 5.0 ppm
pH	7.2 to 7.8
Total alkalinity (TA)	80 to 120 ppm
Calcium hardness (CH)	200 to 400 ppm
Langelier saturation index (LSI)	-0.5 to +0.5
Total dissolved solids (TDS)	Less than 2000 ppm
Cyanuric acid	30 to 150 ppm
Copper	0 ppm

operating your pool heater without sacrificing com- fort.

1.The American Red Cross recommends a maxi- mum water temperature of 78°F (25°C). Use an accurate pool thermometer. A difference of 4 degrees, from 78 to 82°F (25 to 28°C), will use as much as 40% more gas.

2.Carefully monitor the water temperature of your pool in the summertime. You can reduce heater usage due to warmer air temperatures.

3.Find the proper setting on the pool heater tem- perature control and use the TEMP-LOK to

discourage further adjustments.

4.Set the filter time clock to start the pump no earlier than 6:00 AM during the pool heating season. This is the time when nightly heat loss balances.

5.If the pool is only going to be used on weekends, reduce the heater temperature control setting by 8 or 10 degrees during the week. Reset it to the 78°F (25°C) level a day or so before you plan to use the pool.

6.During the winter or when on vacation for longer than a week, shut down the heater by following the shut-down instructions found on the inside of the heater.

7.Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other land- scaping, cabanas, or fencing.

8.Always use a pool cover when practical. Besides providing a valuable safety feature, a pool cover will reduce heat loss, conserve chemicals, and reduce the load on filter systems.

3H. Periodic Inspection

WARNING

Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, or death.

3H-1. Owner Inspection

Teledyne Laars designs and constructs the Laars Lite heater to provide long performance life when installed and operated properly under normal condi- tions. The following basic guidelines are suggested for your inspection:

1.Keep the top and surrounding area of the heater clear of all debris.

2.Keep the heater area clean and free of all com- bustible materials, flammable liquids and vapors, as well as sanitization chemicals.

3.Do not use the heater if any part has been under water. Immediately call a qualified professional technician to inspect the heater and replace any part of the control system which has been sub- merged.

4.If the heater is equipped with a pressure relief valve, check for corrosion and make sure that water runs freely through it. If corrosion is found, replace the pressure relief valve.