Laars DP2000 Installation, Operation And Service Manual - page 12
Page 12
time clock stops.
When the water reaches the temperature level
on the thermostat, the heater will turn off
automatically, but the filter pump will continue to run
for about 20 minutes.
3C. Winter Shutdown
The heater could be seriously damaged by
freezing temperatures if it is not properly
drained.
To shut the heater down for the winter, turn off
all electrical power to the heater. Remove both drain
cocks or plugs (see Fig. 18). Grease the threads on
both the plugs and the holes, and store them in a safe
place during the freezing weather.
It will also be necessary to remove one end of the
pressure switch siphon loop (refer to Fig. 3):
1.
Remove the siphon loop cover on the right side of
the heater.
2.
Remove the compression nut attaching the siphon
loop tube near the front of the heater.
3.
The siphon loop should drain.
NOTE: The XL-3 heater is not designed for
continuous use to combat freezing temperatures. Keep
the temperature at a minimum 70°F (21°C) or shut the
heater down completely.
Operating the heater for long periods at or near
freezing water temperature can seriously damage the
heater, and may create a dangerous condition by
fouling the external heat exchanger passages, causing
incomplete combustion.
3D. Periodic Maintenance
Oil the oil burner motor every six months. Use
SAE 30 non-detergent motor oil in both holes.
Check the following items at least twice yearly:
Wiring
Safety Controls
Oil Piping
Oil Filter
Combustion
Heat Exchanger for sooting
Product Specifications
DP-2000
DP-3000
BTU/hr
230,000
315,000
Fuel Consumption
1.65 GPH
2.25 GPH
Shipping Weight
285 lbs.
315 lbs.
Electrical, Dom.
115 VAC, 60Hz, 1 Ph.
Pump Press, Dom.
100 psi
SECTION 4.
Maintenance
4A. Trouble-Shooting
Problems which may come up with the pool
heater operation or performance will require a trained,
professional technician. There are a few preliminary
symptoms the pool owner should check before calling a
technician:
Oil Burner Does Not Fire
1.
Is the pool temperature control set high enough to
call for heat?
2.
Is the pool heater switch ON? Are all circuit
fuses and remote switches ON?
3.
Is the pool filter clean?
4.
Is there enough fuel in the tank? Is the fuel valve
turned ON?
If the answer to all of these questions is yes, try
the manual overload reset switches on the burner motor
and primary control. If burner does not fire, turn the
heater switch OFF then ON, and try the reset switches
again. If the burner still refuses to fire, call the service
technician.
Figure 18. Heater Drains.