Laars Pennant PNCP, Installation And Operation Instructions Manual

Pennant Pool Heater

Page 17

3.

Improper use of the heater: The Laars PNCP
pool heater is not designed for continuous use as
a “anti-freezing” device for pools. Operating the
heater at low water temperatures will damage the
heat exchanger.

6.7 To Restart the Pennant

If drained, follow Section 6.2 in this manual for

proper filling and purging.
1.

Switch off the main electrical disconnect switch.

2.

Close all manual gas valves.

3.

WAIT FIVE (5) MINUTES.

4.

Set the pool aquastat to its lowest setting.

5.

Open all manual gas valves.

6.

Reset all safety switches.

7.

Set the temperature controller to the desired
temperature setting and switch on electrical
power.

8.

Burner will go through a prepurge period and
ignitor warm-up period, followed by ignition.

6.8 Therapeutic Pools (Spas)

Therapeutic pools or “spa” pools are usually

piped and controlled so that very warm or hot water,
often with air injection, is forced at high velocity into
a confined area of a swimming pool or into a small
separate pool. For the purposes of this manual, any
application in which the water temperature is
maintained above 85°F (30°C) is considered a spa.

SPECIAL SET-UP AND OPERATING

PROCEDURES APPLY TO SPAS.
1.

Models PNCP1000 and larger should not be
used for spas due to their higher temperature
rises.

2.

To ensure that the spa inlet does not exceed 104°F
(40°C), the spa filter pump must circulate water
at the minimum flow rates shown in Table 8.

Heater Model

Minimum Filter

Pump Flow Rate

PNCP 500

240 GPM

PNCP 750

360 GPM

Table 8. Minimum Filter Pump Flow Rates For Spas.

NOTE: Maximum Spa Temperature Is Assumed To Be
100°F (38°C).

3.

Spas are excellent for relaxation, body-
conditioning and for arthritic and rheumatic
problems, but can be hazardous.

WARNING

The U. S. Consumer Product Safety Commission
has warned that elevated temperatures in spas and
hot tubs can be hazardous. Follow these “Safety
Rules for Hot Tubs:”
•

Spa or hot tub water temperatures should never
exceed 104°F (40°C). A temperature of 100°F
(38°C) is considered safe for a healthy adult.
Special caution is suggested for young children.

•

Drinking of alcoholic beverages before or
during hot tub use can cause drowsiness,
which could lead to unconsciousness and
subsequently lead to drowning.

•

Pregnant women beware! Soaking in water
above 102°F (39°C) can cause fetal damage
during the first three months of pregnancy
(resulting in the birth of a brain-damaged or
deformed child). Pregnant women should stick
to the 100°F (38°C) maximum rule.

•

Before entering the spa or hot tub, users should
check the water temperature with an accurate
thermometer; spa or hot tub thermostats may
err in regulating water temperatures by as
much as 4°F (2°C).

•

Persons with a medical history of heart disease,
circulatory problems, diabetes or blood
pressure problems should obtain their
physician’s advice before using spas or hot
tubs.

•

Persons taking medications which induce
drowsiness, such as tranquilizers,
antihistamines or anticoagulants, should not
use spas or hot tubs.

SECTION 7.
Maintenance

7.1 System Maintenance

1.

Lubricate the system water-circulating pump, if
required, per the instructions on the pump.

2.

Inspect the venting system for obstruction or
leakage at least once a year. Periodically clean
the inlet air filter and the screens in the vent
terminal and combustion air terminal (when
used).

3.

Keep the appliance area clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.

4.

If the appliance is not going to be used for
extended periods in locations where freezing
normally occurs, it should be isolated from the
system and completely drained of all water. All
systems connected to it should also be drained or
protected from freezing.

5.

Low water cutoffs, if installed, should be
checked every 6 months. Float type low water