Jandy R0412001 User manual
LD/LJ Side Wall Vent Kit Instructions
Installation Instructions For
LD/LJ Side Wall Vent Kit
WARNING
FOR YOUR SAFETY -
These instructions are to be used with the following Jandy® Replacement Kits:
R0412001--Side Wall Vent Installation Kit, Jandy Pool Heater Model LD/LJ 125 and 175.
R0412003--Side Wall Vent Installation Kit, Jandy Pool Heater Model LD/LJ 250.
R0412005--Side Wall Vent Installation Kit, Jandy Pool Heater Model LD/LJ 325 and 400.
WARNING
If the information in these instructions is not followed exactly, a re or explosion may result
causing property damage, personal injury or death.
This document gives information on installing
the side wall venting kit for all Jandy LD and LJ model
pool/spa heaters. This kit is used to adapt an LD or LJ
model heater for use when horizontal side wall vent-
ing is required or desirable for installation. The wiring
diagrams provided with the kit assure proper installa-
tion. The included Tjernlund UC1 Universal Control is
equipped with an adjustable post purge timing which al-
lows for eld settings to be compatible with the ignition
sequence of the model LD and LJ. The control manu-
facturer's instructions are included for detailed reference
and troubleshooting the control.
This kit supplies you with all of the major compo-
nents of the system that you will need to install the side
wall vent. Due to the different possible congurations
for venting, we do not supply the vent pipe, elbows,
tees, wiring or conduit needed to connect the heater
to the vent blower. However, the appropriate size vent
reducer, to transition from the vent pipe to the blower, is
included for your convenience.
If you need help with the installation of the Side
Wall Vent Kit or more information to clarify the follow-
ing procedure, call the Zodiac Pool Systems, Inc. Tech-
nical Support Department at (800) 822.7933 extension
260. These instructions must be followed exactly. Read
through the instructions completely before starting the
procedure.
Before starting the procedure, use the parts list at
the back of these instructions to identify the parts that
are in your kit. If any parts are missing from the kit
please call your local Jandy distributor for assistance.
1. Prepare The Heater
In general, locate the heater as described in the LD
or LJ Installation and Operation Manual, provided with
the heater. All requirements for heater installation and
location are the same as the installation requirements
of the manual. Only the section on venting of indoor
installations will change.
Jandy LD and LJ heaters are shipped in the out-
door conguration with the low prole top installed.
The heater will need to be tted with a draft hood in
order to properly connect the side wall vent kit. Use the
following table to verify that the correct draft hood is
tted to the heater (see Table 1).
Instructions for the installation of the draft hood
are included with the draft hood kit. Install the draft
hood according to the manufacturer's instructions.
Table 1. Draft Hood and Vent Pipe Diameter
HEATER
SIZE
DRAFT
HOOD
DIA.
VENT
PIPE
DIA.
JANDY
DRAFT
HOOD KIT
NUMBER
USED WITH
SIDE WALL
VENT KIT
NUMBER
2. Vent Pipe and Side Wall Venter
Installation.
In this section, special requirements relating to the
combination of the LD or LJ heater and the Tjernlund
side wall vent system are stated. All normal require-
ments of the LD and LJ heater installation and operation
manual and those in the Tjernlund side-wall vent
systems instructions must also be met. Heater location,
combustion air supply, clearance to combustible materi-
al and all other normal installation requirements remain.
2.1 Construction
When using the Tjernlund side wall vent system
with the LD or LJ heater, the following constraints must
be met in order to assure safe and efcient operation of
the system.
1. The appropriate diameter, type "B", double wall
vent pipe must be used to connect the heater to the
side wall vent blower (see Table 1).
2. The construction of the vent must not exceed ten
(10) feet of straight pipe and a total of three (3)
90° turns.
3. Construction of the vent must meet all national
and local building codes.
2.2 Conguration
There are two basic congurations that are al-
lowable when combining the power venter with an LD
or LJ heater. One is a conguration where the initial
section of vent pipe is run horizontally from the top of
the draft hood (see Figure 1). The other conguration
consists of an initial vertical section of vent pipe (see
Figure 2). Either conguration must meet the following
constraints.
1. The draft hood must be connected directly to the
heater as per the draft hood instructions.
2. The side wall vent blower must be installed at the
point of exit from the structure.
3. The vent hood must be connected directly to the
exhaust vent of the blower.
Figure 1. Vent Conguration With Initial Horizontal
Section of Vent Pipe
Figure 2. Vent Conguration With Initial Vertical
Section of Vent Pipe
LD/LJ Side Wall Vent Kit Instructions
4. The vent pipe diameter is determined by the size
of the heater. The full length of the vent pipe must
be the diameter as stated in Table 1 on page 1. On
heater sizes 125, 175, 325, and 400, use the "bell"
reducer, enclosed in the kit to attach the vent pipe
to the power venter blower. On heater size 250,
use the "bell" reducer to attach the vent pipe to the
draft hood.
5. Horizontal sections of the vent pipe must have a
minimum 1/4 inch vertical rise per foot of pipe,
sloping upward, away from the heater.
6. There must not be any other appliance connected
to this venting system.
3. Electrical Connections
Please refer to the Tjernlund Products, Inc. "Side
Wall Vent Systems" installation manual for safety
information and detailed information on the Tjernlund
products.
The following instructions are specic to the wir-
ing and operation of the kit's blower and control panel
with the LD and LJ heaters. These instructions and the
wiring diagrams must be followed exactly in order for
the system to operate safely and efciently.
WARNING
SHOCK HAZARD!
3.1 Preparing The Heater
The internal 24 volt heater wiring must be slightly
modied to incorporate the side wall vent controller into
the safety circuit.
Section 3.1.1 describes the steps to modify the
model LD heater.
Section 3.1.2 describes the steps to modify the
model LJ heater.
3.1.1. Modify the Model LD Heater
Wiring
1. Turn off the main breaker to the circuit that sup-
plies the heater with power.
2. Remove the heater door.
3. Locate the common terminal on the transformer.
There will be a yellow wire with a "piggy back"
terminal attached to the transformer and a green
wire with a yellow trace connected to the "piggy
back" terminal (refer to the heater's wiring di-
agram).
4. Disconnect the green wire with a yellow trace
from the "piggy back" terminal.
5. Plug the double male connector, included in the
kit, onto the "piggy back" terminal.
6. Reconnect the green wire with a yellow trace to
one (1) terminal of the double male connector.
7. Connect the yellow wire, supplied in the kit, to the
other terminal on the double male connector and
strip 1/2" of insulation off of the end of the wire.
8. Remove the black wire from the "TH" terminal of
the ignition control.
9. Cut the terminal off of the black wire and strip the
insulation back 1/2" from the end.
10. Connect the purple wire, supplied in the kit, to the
"TH" terminal of the ignition control.
3.1.2. Modify the Model LJ Heater
Wiring
1. Turn off the main breaker to the circuit that sup-
plies the heater with power. If the pump is con-
nected to the heater's internal time clock, turn off
the breaker to the circuit that supplies power to the
pump.
2. Remove the heater door.
3. Remove the cover from the high voltage assembly
(see Figure 3).
4. Mount the blower relay to the back panel of the
high voltage assembly (see Figure 4). If the lter
pump is connected to the heater's internal time
clock, the pump relay will already be mounted in
this position. To mount the blower relay, do the
following:
- Mount the blower relay to the relay bracket,
included in the kit, using the provided screws,
as shown in Figure 5, if a standard time clock
is controlling the lter pump.
- If a lter pump relay is controlling the lter
pump, remove the pump relay from the back
panel of the high voltage assembly. Do not dis-
connect any of the wires attached to the relay.
- Place the bracket, with the blower relay, in
position by aligning the holes in the bracket
with the holes on the back panel where the
pump relay was mounted. Place the pump relay
over the bracket and use the screws removed
earlier to secure the bracket and the pump relay
to the back panel (see Figure 6).
Figure 3. Remove the Cover of the High Voltage
Assembly
Figure 4. Mount the Blower Relay
Figure 5. Use the Mounting Bracket if the Filter
Pump Relay is Mounted in the High
Voltage Assembly
Figure 6. Mount the Bracket Under the Filter Pump
Relay
LD/LJ Side Wall Vent Kit Instructions
5. Plug the wires attached to the blower relay into
the receptacle marked "BLOWER" on the power
distribution board (see Figure 4 or 6).
6. Remove the black wire from the terminal of the
water pressure switch (refer to the heater's wiring
diagram).
7. Cut the terminal off of the black wire and strip the
insulation back 1/2" from the end.
8 Connect the purple wire, supplied in the kit, to the
terminal of the water pressure switch where the
black wire was connected.
3.1.3 Install the Air Deector Bracket
on the Model LJ Heater
The power venter blower is turned on before the
ignition sequence of the heater begins. This causes a
situation where air is being circulated past the igniter
when it is energized, cooling the igniter. The igniter is
cooled to the point where it may not ignite the gas when
the gas valve opens. The air deector bracket, included
in the kit, must be installed to deect the air around the
igniter, allowing it to heat enough to ignite the gas.
The air deector bracket is not needed on the mod-
el LD heater because it uses a different type of igniter.
Figure 7. Install the Air Deector Bracket
Figure 8. Cross-Section of Installed Air Deector
Bracket
1. Remove the screw that holds the bottom of the
igniter box to the inner panel (see Figures 7 and 8).
2. Slide the top ange of the air deector bracket
between the locator bracket on the igniter box and
the inner panel.
3. Align the hole in the bracket with the hole in the
igniter.
4. Replace the screw.
3.2 Connect the Side Wall Vent Blower to
the UC1 Controller
1. Mount the UC1 controller in a location that is near
enough to the vent blower so that the supplied
wire harness and conduit will connect the two (2)
components easily.
2. Check that the harness is connected to the UC1
controller as shown in the wiring diagram (see
Figure 10 or 11).
3. Remove the cover of the blower's junction box.
Insert the wires from the free end of the wire har-
ness, attached to the UC1 controller, through the
hole in the side of the blower junction box and
mount the conduit connector to the box.
4. Connect the wires as follows (see Figure 9):
- Connect the blue wire of the harness to the back
of the blower prover switch.
- Connect the yellow wire of the harness to the
remaining terminal on the blower prover switch.
- Connect the green wire of the harness to the
ground screw where the green wire with a yel-
low trace, from the blower motor, is connected.
- Connect the black wire of the harness to the
black wire from the blower motor.
- Connect the white wire of the harness to the
white wire from the blower motor.
5. Replace the cover to the blower's junction box.
3.3 Connect the Heater to the UC1
Controller
The installer must construct a wire harness of the
length needed to connect the heater to the UC1 con-
troller. Use wire of 20 AWG minimum with insulation
rated at 90oC or higher. Installation can be made simpler
by matching the colors of the wires in the heater, i.e.
black with a yellow trace, yellow, black and purple. In
any case the connections must be per the wiring dia-
gram (see Figure 10 or 11). Run the wires in approved
conduit.
Figure 9. Connections at the Power Venter Blower
Junction Box
3.3.1 Connections at the LD Heater
Three (3) copper wires of the type described above
must be provided to connect the heater control system to
the UC1 controller.
1. Remove the button plug from the hole on the right
side of the heater. The hole is located near the
front, just above the louver vent.
2. Connect the conduit to the side of the heater using
a conduit connector and nut.
3. Strip the insulation from each of the wires that will
lead to the UC1 controller about 1/2" from the end.
4. Locate the yellow wire installed on the transform-
er, the purple wire installed on the "TH" terminal
of the ignition control during the steps in Section
3.1.1 and the black wire connected to the "F2"
terminal on the ignition control.
5. Using the wire nuts provided in the kit, make the
following connections in the heater's vestibule (see
Figure 10, Wiring Diagram).
- Connect the black wire from "F2" on the igni-
tion control inside the heater to wire " a " of the
eld constructed wire harness.
- Connect the yellow wire of the heater's trans-
former to wire " b " of the eld constructed wire
harness.
- Connect the purple wire of the heater's ignition
control to wire " c " of the eld constructed wire
harness.
3.3.2 Connections at the LJ Heater
Four (4) copper wires of the type described in Sec-
tion 3.3 must be provided to connect the heater control
system to the UC1 controller.
1. Remove the button plug from the hole on the right
side of the heater. The hole is located near the
front, just above the louver vent.
2. Connect the conduit to the side of the heater using
a conduit connector and nut.
3. Strip the insulation from each of the wires that will
lead to the UC1 controller about 1/2" from the end.
4. Locate the purple wire installed on the water
pressure switch, during the steps in Section 3.1.2
and the black wire connected to the high voltage
assembly that was cut and stripped.
5. Using the wire nuts provided in the kit, make the
LD/LJ Side Wall Vent Kit Instructions
Figure 10. Wiring Diagram for Connecting a Model LD Heater to a Side Wall Power Venter
F2
F1
Figure 11. Wiring Diagram for Connecting a Model LJ Heater to a Side Wall Power Venter
LD/LJ Side Wall Vent Kit Instructions
following connections in the heater's vestibule (see
Figure 11, Wiring Diagram).
- Connect the purple wire of the heater's water
pressure switch to wire " d " of the eld con-
structed wire harness.
- Connect the black wire to wire " c " of the eld
constructed wire harness.
- Connect wire " a " and wire " b " of the eld
constructed wire harness to the blower relay.
6. Reinstall the cover on the high voltage assembly.
When putting the cover in place be sure that the
igniter wires are routed through the cut-out in the
lower left side of the cover and all 24V wires,
including the blower relay if mounted on the
bracket, are routed through the cut-out in the upper
left side of the cover. Be careful not to pinch any
wires under the cover when reinstalling it.
3.4 Connections at UC1 Controller
3.4.1 Installation on a Model LD Heater
1. Connect the conduit from the heater to the bottom
of the junction box at the UC1 controller using the
conduit connector and nut supplied in the kit.
2. Strip the insulation from each of the conductors
about 3/8" from the end.
3. Connect the wires to the UC1 as follows (see Fig-
ure 10).
- Connect wire " a " of the eld constructed har-
ness to the number "1" position of the terminal
strip at the bottom of the UC1 controller.
- Connect wire " b " of the eld constructed har-
ness to the number "2" position of the terminal
strip at the bottom of the UC1 controller.
- Connect wire " c " of the eld constructed har-
ness to the number "4" position of the terminal
strip at the bottom of the UC1 controller.
NOTE: Power connection to the controller requires a
three (3) conductor copper wire harness that is run
in a conduit from the power supply to the con-
troller. These components must be supplied by the
installer. Consult your local and national electrical
codes for type and gauge of wire needed.
4. Connect 115VAC power to the UC1 controller as
follows.
- Connect the black wire (line) of the power to the
terminal marked "L" in the controller.
- Connect the white wire (neutral) of the power to
the terminal marked "N" in the controller.
- Connect the green wire (ground) of the power to
a ground screw on the junction box.
3.4.2 Installation on a Model LJ Heater
1. Connect the conduit from the heater to the bottom
of the junction box at the UC1 controller using the
conduit connector and nut supplied in the kit.
2. Strip the insulation from each of the conductors
about 3/8" from the end.
3. Connect the wires to the UC1 as follows (see Fig-
ure 11).
- Connect wire " a " of the eld constructed har-
ness to the "A" position of the terminal strip at
the bottom of the UC1 controller.
- Connect wire " b " of the eld constructed har-
ness to the "B" position of the terminal strip at
the bottom of the UC1 controller.
- Connect wire " c " of the eld constructed har-
ness to the number "3" position of the terminal
strip at the bottom of the UC1 controller.
- Connect wire " d " of the eld constructed har-
ness to the number "4" position of the terminal
strip at the bottom of the UC1 controller.
NOTE: Power connection to the controller requires a
three (3) conductor copper wire harness that is run
in a conduit from the power supply to the con-
troller. These components must be supplied by the
installer. Consult your local and national electrical
codes for type and gauge of wire needed.
4. Connect 115VAC power to the UC1 controller as
follows.
- - Connect the black wire (line) of the power to the
terminal marked "L" in the controller.
- - Connect the white wire (neutral) of the power to
the terminal marked "N" in the controller.
- - Connect the green wire (ground) of the power to
a ground screw on the junction box.
3.5 Dip Switch And Jumper Settings in
UC1 Controller
The UC1 controller is a universal controller and
can accommodate a variety of pre-purge and post purge
needs and signal types. The following sections describe
the settings needed to congure the UC1 controller for
use with the model LD and LJ heaters.
3.5.1 Dip Switch Settings in UC1
Controller Installed on a Model
LD or LJ Heater
In order to purge the vent system, the side-wall
venter must operate longer than the heater. The UC1
controller does this automatically, but correct delay
timing must be set when it is installed. A bank of “dip
switches” on the UC1 is provided for this purpose.
The heater's control system shuts the heater burn-
ers off when the call for heat is satised or when the
pump is shut off. Set dip switch number 3 of the UC1
controller to the "ON" (up) position, which will impose
30 seconds of venter shutoff delay. All other dip switch-
es must remain in the off (down) position (see Figure
12).
3.5.2 Jumper Placement in the UC1
Controller Installed on a Model
LD Heater
The Jandy LD heater uses a 24V signal to activate
the power venter blower. When using the UC1 control-
ler with a 24V signal, the "Call Jumper" (see Figure
10) must be connected to the appropriate terminals to
complete the circuit.
1. Check to be sure that the "Red Voltage Selection
Jumper" is in the 24V position on the UC1 con-
troller.
2. Check to be sure that the "Call Jumper" is con-
nected between the J1 and J2 terminals.
3. Install the cover on the junction box of the con-
troller.
4. Peel the backing off of the wiring diagram label
place it on lower right side of the heater.
3.5.2 Jumper Placement in the UC1
Controller Installed on a Model
LJ Heater
The Jandy LJ heater uses an integrated circuit to
sense a 24V signal, then energizes a relay (dry switch)
to activate the power venter blower. When using the
UC1 controller with a dry switch, the "Call Jumper" be-
tween terminals J1 and J2 must be removed (see Figure
11).
1. Check to be sure that the "Red Voltage Selection
Jumper" on the UC1 controller is in the "DR" posi-
tion.
2. Check to be sure that the "Call Jumper" is re-
moved from the UC1 controller.
3. Install the cover on the junction box of the con-
troller.
4. Peel the backing off of the wiring diagram label
place it on lower right side of the heater.
Figure 12. Dip Switch Settings on the UC1 Control
LD/LJ Side Wall Vent Kit Instructions
4. Operational Checkout For The LD
and LJ Heater
The heater and side-wall venter installation must
be checked for correct control sequence and vent opera-
tion. This must be done in conjunction with procedures
prescribed in the LD or LJ heater installation instruc-
tions and the Tjernlund instructions for side wall vent
systems. The complete pool system must be in place and
operable.
4.1 Sequence of Operation for the LD and
LJ Heaters
When the electronic control of the heater senses
that water owing through the heat exchanger is too
cool, a heating sequence is initiated as follows:
1. The heater control system turns on the side-wall
venting system blower.
2. The venter pressure switch senses venter operation
and enables the heater to begin its ignition se-
quence.
3. When the igniter is hot enough, the gas valve
opens and burner ignition takes place.
4. When the call for heat ends, the burners are shut
off.
5. Approximately 30 seconds after the heater burners
are shut off, the side-wall venter stops.
If normal ignition is not accomplished during a
call for heat, the heater ignition control imposes two (2)
additional attempts. At appropriate times during those
attempts, the heater will attempt to ignite the burners.
The side-wall venter will operate continuously during
recycle ignition attempts.
4.2 Draft Check and Venter Flow
Adjustment
Operational checks for draft and venter ow are
necessary to assure that the vent operates properly. A
properly installed and adjusted system will operate at
negative pressure, drawing air into the draft hood. Re-
fer to the Tjernlund installation instructions and conduct
the tests and adjustments prescribed therein.
5. Parts List
The following table is for your reference. To
order additional parts, please contact your local Jandy
distributor.
ITEM
NO. COMPONENT DESCRIPTION
R0412001 R0412003 R0412005
-
- -
-
- -
- -
--
- -
- -
QUANTITY
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