Laars DP2000 Guide de configuration
Installation, Operation and Service Instructions
H0223500-
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in pool heater installation and maintenance. Improper installation and/or operation could
create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death.
Improper installation and/or operation will void the warranty.
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance. WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency, or gas
supplier.
Installation, Operation
and Service Manual
for the
XL-3 Oil-Fired
Pool Heater
Models DP2000
and DP3000
Page 2
TABLE OF CONTENTS
SECTION 1.
General Information
1A. Warranty....................................................... 3
SECTION 2.
Assembly & Installation
2A. Shipping Damage.........................................3
2B. Assembly and Location ................................3
2C. OutdoorInstallation ....................................... 5
2D. IndoorInstallation .......................................... 5
2D-1. Venting ......................................................... 5
2D-2. Clearances.................................................... 6
2D-3. CombustionAirSupply.................................. 6
2E. Oil Piping ...................................................... 6
2F. WaterPiping ................................................. 8
2F-1. WaterConnections........................................ 8
2G. PressureReliefValve .................................... 9
2H. AutomaticChlorinators .................................. 9
2I. Electrical Wiring ............................................ 9
2J. TimeClockInstallation ................................ 10
2K. Special Pressure Switch ............................. 10
SECTION 3.
Operating Instructions
3A. Start Up Procedure.....................................10
3B. Setting the Time Clock............................... 11
3C. Winter Shutdown ........................................ 12
3D. Periodic Maintenance................................. 12
SECTION 4.
Maintenance
4A. Trouble-Shooting ........................................ 12
4B. Cleaning the Heat Exchanger .................... 13
4C. Trouble-Shooting Guide ............................. 13
4D. Operating Sequence................................... 14
4E. Trouble-Shooting ........................................ 14
4E-1. Burner will not start (motor and
transformer do not come on) ...................... 14
4E-2. Burner Tries to Start, but the Primary
Control 10 Shuts Off (either motor or
transformer or both come on)..................... 15
4E-3. Oil Burner Will Not Shut Off....................... 15
4E-4. Setting the Correct Fuel-Air Mixture...........15
4E-5. Regular Maintenance ................................. 16
SECTION 5.
Service Information
5A. Control and Cad Cell Tests ........................ 17
5B. Control & Cad Cell
Trouble-Shooting Guide ............................. 17
SECTION 6.
Parts List for Model DP
Oil-Fired Heater
6A. Parts List .................................................... 18
Model DP Oil-Fired Heater Page 3
SECTION 1.
General Information
NOTICE TO INSTALLER: Deliver all
documents that come with the heater to the pool owner.
These include the Owner’s Information and Operating
Manual and this Installation Manual.
For your safety, do not store gasoline or other
flammable liquids or vapors in the vicinity of this or
any other appliance.
Use only #2 fuel oil or #2 diesel fuel. Heavier
fuels will not operate satisfactorily, and their use
will void the warranty.
NOTE: Read the Owner’s Information Manual
before starting this installation, and before starting up
the heater the first time.
1A. Warranty
The XL-3 pool heater is sold with a limited
warranty. Details are specified on the back page of this
manual. Make warranty claims to an authorized Laars
representative or to the factory. Claims must include
the serial number and model of the heater, installation
date and name of the installer.
SECTION 2.
Assembly & Installation
2A. Shipping Damage
After unpacking the heater, check for visible
damage from shipment mishandling. Water Pik
Technologies carefully manufactures, inspects and
packages the heater before delivering it to the freight
carrier. Immediately file any claim for damage against
the freight carrier.
2B. Assembly and Location
Only use the XL-3 heater with pools filled with
potable water. Using the heater with mineral water,
salt water, sea water or other non-potable water will
void the warranty. The installation must comply with
all local building and safety codes.
Typically,installtheheaterona noncombustible
surface. Under Standard NFPA No. 31, it is
permissible to install the heater on a combustible
surface when the installation complies with the
requirementsof theAmerican Insurance Association.
These requirements specify that the surface under the
heater must be hollow masonry not less than 4" thick,
covered with at least 24 gauge sheet metal. The
masonry must be laid with ends unsealed and joints
matched to provide a free circulation of air through the
masonry. Maintain the minimum clearances to
combustible surfaces as specified in Sections 2C and
2D of this manual. The heater must be level.
The XL-3 is shipped with the inner stack
packaged on top of the control panel door in the box
with the heater. The inner stack must be assembled
and installed before mounting the vent cap or vent
Figure 1. XL-2 Oil-Fired Heater.
DP-2000: 22½"
DP-3000: 26¾"
Page 4
pipe. To assemble the inner stack, remove the tape
and small envelope from the sheet metal coil. Expand
the coil until the holes on each end are aligned. Use
the two screws supplied in the small envelope to
secure the ends together. Install the inner stack, 7"
(18cm) diameter, on the collar of the flue collector
before attaching the vent cap (outdoor installation) or
vent pipe (indoor installation) as shown in Fig. 4. The
XL-3 can be installed with the water connections on
either side. Water Pik Technologies ships the heater
with the water connections on the right side, but
changing the connections to the left side could simplify
the installation or improve access for service and
maintenance. Make the change before locating and
connecting the heater.
Follow these step-by-step instructions and
Figure 3 to reverse the heat exchanger:
1. Remove the control compartment door.
2. Remove the chimney cap assembly, or
barometric draft control if one is installed, and the
inner stack (1).
3. Remove the eight screws securing the top
assembly (2) and lift off.
4. Bend back retaining tabs and lift out the
wire guard (3). Take off the four V-baffles
(2 each side).
5. Lift out the flue collector assembly (4).
6. Remove the siphon loop cover (5) located on the
right side of the heater under the In-Out header.
7. Remove both gap spacers (6).
8. Disconnect the siphon loop on the header (7).
Remove both drain cocks (8) (one at each end of
the heat exchanger).
Figure 2. Non-Combustible Platform. Figure 4. Inner Stack.
Figure 3. Heat Exchanger Reversal.
Model DP Oil-Fired Heater Page 5
9. Lift off both heat exchanger baffles.
10. Carefully remove the insulation at each corner of
the heat exchanger; it will be re-used. Remove the
four hold-down screws (10).
11. Unplug the electrical connector at the switch box
inside the control compartment. At the other end
of the conduit, loosen the brass compression
fitting one or two turns. Rotate the conduit
assembly and lay it on top of the heat exchanger.
FOR YOUR SAFETY: It is recommended that
two people perform the next step.
12. Lift out and rotate the heat exchanger. Make sure
the insulation strips stay in position under the
header bars.
13. Put the screws through the hold-down clips at
each corner of the heat exchanger. Put the
insulation back in the corners.
14. Rotate the conduit assembly and attach it to the
switch box. Tighten the compression nut on the
otherend.
15. Replace the heat exchanger baffles and the flue
collectorassembly.
16. Install the drain cocks and pipe plug according to
the illustration (see Fig. 5).
17. Straighten the siphon loop tubing and connect it to
the header where the drain plug was removed.
18. Replace the gap spacers, siphon loop cover and
rubber plugs and grommets.
19. Install the T-baffles on the gap spacers to match
the screw holes in the top assembly.
20. Replace the wire guard. Bend the tabs to secure it
in place.
21. Attach the top assembly. Install the inner stack
22. Install the chimney cap assembly, or barometric
draft control if one was removed.
2C. OutdoorInstallation
Install the Laars XL-3 heater in the open, or in an
enclosure without a roof. The chimney cap supplied
with the heater must be installed. The danger of fire
requires a minimum clearance from combustible
surfaces or shrubbery of 6 inches (15cm) (see Fig. 6).
The flue products must be dispersed in the outside air,
and fresh air available for proper combustion. Do not
install the heater under eaves where roof drainage
could fall directly on the heater.
It is possible that prevailing winds could cause a
downdraft. Therefore, keep the side of the heater at
least 3 feet (91 cm) from the face of any wall or fence.
2D. Indoor Installation
2D-1. Venting
If the heater is installed in an occupied building,
Figure 5. Connection Locations.
Figure 6. Minimum Clearances, Outdoor Installation.
Figure 7. Incorrect Installation.
Page 6
the room containing the heater must have its own
combustionand ventilation openingsas described
below (see Fig. 8).
Vent the XL-3 to a permanent chimney or
through the roof with an approved stack when it is
installed indoors. You must install a barometric draft
control between the heater and the stack with a
minimum 13" clearance between the chimney
connector and any combustible surface. Observe
NFPA Standard No. 31 and all national and local
ordinances.
Run the vent pipe as directly as possible with
minimum turns. Never use a vent smaller than 9"
(23cm). On lateral runs, maintain a minimum pitch of
1/4" (.6cm) per linear foot. If a chimney is used, the
total equivalent straight length of flue piping between
the heater and the chimney should not exceed 75% of
the vertical height of the chimney above the flue pipe
connection. The chimney should be at least 9" (23cm)
diameter. Maintain adequate clearances between the
vent pipe and combustible materials. Check local codes
and the vent manufacturer’s instructions for proper
clearances. The 7" (18cm) dia. inner stack must be in
place.Any change in the amount of draft in the
combustion chamber can affect the flame
characteristics. An approved barometric draft control
must be used on all indoor installations to maintain a
clean and consistent flame. When the system is
properly adjusted, the pressure in the stack below the
draft control will be approximately minus .03" W.C. If
this draft pressure cannot be achieved, the chimney is
too short or too small. Take corrective action.
Avoidlocating thechimney termination ina
location susceptible to down draft conditions, or near
ventilationinletstothebuilding.
2D-2. Clearances
Providethefollowingminimumclearancesfrom
combustiblesurfaces:
Water Inlet/Outlet side 24" (61cm)
Other side and rear 6" (15cm)
Front Control compartment 24" (61cm)
Chimneyconnector 13" (33cm)
2D-3. Combustion Air Supply
Do not install the heater in a room that does not
have enough air supply to support combustion. There
must be two openings to outside air provided; each
opening must have a free area equal to 80 sq. in.
(516.1 sq. cm). It is good practice to put one opening
near the floor and the other near the ceiling.
When installing the heater in an interior room, all
doors communicating with outside air must have
specified openings (see Fig. 9). There must be no
Figure 8. Venting, Indoor Installation.
Model DP Oil-Fired Heater Page 7
openingscommunicatingwithlivingareas.
2E. Oil Piping
All XL-3 heaters are equipped with two-stage
fuel units. Water Pik Technologies recommends a
two-pipe system with a supply line and a return line
between the heater and the tank (see Fig. 10). When
using a two-pipe system, install the bypass plug in the
fuel unit. The plug is shipped in the small plastic bag
attached to the oil burner. The location for the plug is
shown on the decal on the end of the fuel unit.
Remove the large hex-head fitting and insert the plug,
Figure 9. Combustion Air, Indoor Installation.
Lift from
bottom of
Storage
tank to Total Tubing Length Allowed
fuel unit 3/8" dia. 1/2" dia.
0 ft. (0.0m) 68 ft. (20.7m) 100 ft. (30.5m)
2 ft. (0.6m) 63 ft. (1 9.2m) 100 ft. (30.5m)
4 ft. (1.2m) 58 ft. (17.7m) 100 ft. (30.5m)
6 ft. (1.8m) 53 ft. (16.2 m) 100 ft. (30.5m)
8 ft. (2.4m) 48 ft. (14.6m) 100 ft. (30.5m)
10 ft. (3.0m) 42 ft. (12.8m) 100 ft (30.5m)
12 ft. (3.7m) 37 ft. (11.3m) 100 ft. (30.5m)
14 ft, (4.3m) 32 ft. ( 9.8m) 100 ft. (30.5m)
16 ft. (4.9m) 27 ft. ( 8.3m) 100 ft. (30.5m)
18 ft. (5.5m) 22 ft. ( 6.7m) 88 ft. (26.8m)
Table 1. Fuel Line Sizes. Figure 10. One-Pipe and Two-Pipe Systems.
Page 8
using an Allen wrench. Check the instructions
attached to the fuel pump for proper fuel connections.
Compression fittings are not recommended.
See Table 1 for correct fuel line sizes. NEVER
USE TUBING SMALLER THAN 3/8" (1cm).
Water Pik Technologies provides an oil filter with
the
XL-3 heater. Install this filter using the fittings
provided for convenient servicing of the oil burner and
filter (see Fig. 11). Post a notice near the heater stating
filterservicefrequency.
Provide an approved, high quality shutoff valve
at the oil supply tank.
2F. Water Piping
2F-1. Water Connections
Connect the inlet and outlet piping to the
universal flange couplings on the heater as shown
below. The inlet and outlet ports on the heater are
clearly marked with arrows on top of the control
cover.
The flanged couplings accept either threaded iron
pipe, 1-1/2" NPT, unthreaded 1-1/4" iron pipe, or
1-1/2" copper tubing (see Fig. 12).
Connect the pool heater between the pump and
filter and the pool or spa. If the system flow rate
exceeds 60 gpm (228 lpm), install a manual bypass
valve between the heater inlet and outlet (see Fig. 15).
If the flow rate is below 60 gpm (228 lpm), the
automatic,built-inbypassvalvewillmaintainthe
proper flow through the heater.
If a manual bypass is required, adjust it using the
followingprocedure:
1. Clean the filter.
2. Install a thermometer in the 1/2" NPT threaded
opening in the front header casting as shown in
Fig. 13.
3 Close the manual bypass valve.
4. Turn the heater switch to OFF, and run the filter
pump. Record the temperature.
5. Turn the heater switch to ON, and turn the
thermostat high enough to call for heat.
6. Gradually open the manual bypass valve until the
thermometer reads 11 to 14°F (6.1 to 7.8°C) for
the DP-2000 or 16 to 20°F (8.9 to 11.1°C) for
the DP-3000 above the temperature recorded in
Step 4.
Figure 11. Oil Filter Installation.
Figure 12. Water Connections.
Figure 13. Thermometer Placement.
Model DP Oil-Fired Heater Page 9
The bypass valve is properly adjusted. Remove
the handle on the valve, or place a warning tag “DO
NOT TOUCH THIS VALVE.”
Install a check valve and heat sink pipe in the
heater inlet if any part of the piping or filter system
uses plastic materials (see Fig. 15).
2G. Pressure Relief Valve
A pressure relief valve is not furnished with the
heater, except in Canada. Check local building and
plumbing codes to determine if a pressure relief valve
is required. A 75 psi rated relief valve is recommended
for protection of the filter system if there is a shut-off
valve installed between the heater and the pool (see
Fig. 14). If a pressure relief valve is not required, leave
the standard 3/4" brass plug in place.
2H. Automatic Chlorinators
A concentration of chlorine in the heater can be
very destructive. Heater damage caused by high
concentrations of chlorine, for any reason, is not
covered by the warranty.
IMPORTANT:
1. Provide the automatic chlorinator with an anti-
siphoningdevicetopreventchlorinesiphoning
into the heater after the pump shuts off.
2. Wire the electric chlorinator so it cannot operate
unless the filter pump is running. If the
chlorinator has an independent clock control,
synchronize the filter pump and chlorinator
clocks, so the chlorinator only operates during the
filtercycle.
3. If the chlorinator is equipped with its own pump,
install it so that it introduces the gas or solution
downstream from the heater, and at a lower
position than the heater outlet.
2I. Electrical Wiring
Wire the XL-3 heater in accordance with the
National Electric Code and all applicable local codes.
The power supply must be 11 5V, 60Hz, single phase
with voltage maintained between 104V and 126V.
have a double-pole ON/OFF switch (see Fig. 16-17).
Run all field-supplied wires in conduit to the
knockout at the bottom of the ON/OFF switch box.
Figure 15. Water Piping.
Figure 14. Pressure Relief Valve.
Manual bypass is used
onlywhenfiltrationrate
normallyexceeds
60gallonsperminute
ThermometerFor
TestingTemperature
Rise
Page 10
Attach a ground wire to the green lug in the switch
box as shown in the wiring diagram. A separate lug is
on the exterior of the heater for a system bonding
conductor as required by Article 680 of the National
Electric Code, ANSI C1 -1975.
The XL-3 is factory-wired for a time clock.
2J. Time Clock Installation
A time clock which will automatically turn the
pool system OFF and ON provides convenience and
safety, and is more economical. If a time clock is
installed, it is recommended that it include a Fireman
Switch. The Fireman Switch will shut down the heater
about 20 minutes before the filter pump shuts down.
This allows the water flow to carry away residual heat
in the firebox without damage to the heater or other
parts of the system.
Field install high temperature wires (150°C) from
the Fireman Switch. Run the wires to the heater
through the knockout on the right side of the heater
body. Connect them to the two wires joined with a
wirenut in the control compartment. The wirenut has a
tag on it carrying wiring instructions. Position the
field-installed wires away from the inner panel.
2K. Special Pressure Switch
A special pressure switch is required if the XL-3
is installed more than 3 feet below the surface of the
pool. Consult a Laars representative or contact the
factory.
IMPORTANT: Before starting the heater on a
new installation, relieve all air from the system by
running the filter pump for at least 15 minutes.
SECTION 3.
OperatingInstructions
3A. Start-up Procedure
In a new installation, always run the filter pump
with the heater turned off long enough to completely
clean the pool water. This will remove any residue left
from construction. Clean the filter before starting the
heater.
Before starting the oil burner, check the wiring to
make sure there are no loose connections. Check all
fuel line connections for tightness. Open the fuel
shutoff valves at the heater and the tank.
Caution
Do not try to light the burner if excessive oil has
accumulated in the firebox, or when the heater is
full of vapors.
A QUALIFIED SERVICE TECHNICIAN
Figure 16. Wiring Diagram, 60 Hz Model.
DP2000
DP3000
OILFIRED
POOLHEATER
Ce manuel convient aux modèles suivants
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