Jandy Laminar Jet Operation Manual

Installation and Operating Data

Installation and
Operation Manual

Jandy® Laminar
Jet with Deck Box

WARNING

FOR YOUR SAFETY - This product must be installed and serviced by a pro fes sion al pool/spa
service technician. The procedures in this manual must be followed ex act ly. Failure to follow
warning notices and instructions may result in property damage, serious injury, or death.

This manual contains important information about the installation, operation and safe use of
this product. This information should be given to the owner/operator of this equipment.

H0565200B

Page 3

Section 1. General Installation

Requirements

This document gives in struc tions for installing the
Jandy Laminar Jet. Read through the in struc tions
com plete ly before starting the pro ce dure.

The Jandy Laminar Jet is designed to provide a clear
stream of water that arcs up to a maximum of seven
feet (7') high and eight feet (8') out into the water.
Its design provides for the option to light the arc of
water with fi ber optics creating a daz zling nightime
effect. This unique water feature is easily installed and
multiple jets can be com bined to create spec tac u lar
water en ter tain ment.

To properly install this product please review the
following installation and main te nance in struc tions.

1.1 Water Source

The Laminar Jet water supply line must be fi ltered
by a cartridge fi lter (do not use a sand fi lter). If you
are using a dedicated fi lter - it must be a minimum of
20 square feet. For multiple jet installations, use 100
square feet, such as the Jandy CT100.

1.5 Critical Placement Dimensions

The Laminar Jet can project a maximum of seven feet
(7') up and eight feet (8') out into the water. Therefore,
ensure the installation is no more than six feet (6')
from the inside edge of the pool.

NOTE To avoid water spray on the deck in high wind

areas, place the Laminar Jet closer to the edge
of the pool.

NOTE The Deck Box lid can only rotate approximately 30

degrees to the left or the right. Therefore, make
sure that the Deck Box is positioned towards the
desired target location (see Section 2) prior to
completing the installation.

1.6 Bonding

NOTE Only units with metal mounting brackets require

bonding.

The Laminar Jet assembly mounting brackets (metal
only) must be bonded to the pool/spa structure using a
solid copper conductor, No. 8 A WG or lar ger. Prepare
the unit for bonding prior to installation. Bond the
unit using the external lug provided to a steel rod in
the deck frame or metal piping within fi ve feet (5’)
of the inside walls of the pool.

1.2 Pump

Required minimum pump fl ow for each Laminar
Jet is approximately 10 gallons per minute (gpm).
If a dedicated pump is used, a minimum of ½ HP is
required and the pump must produce the required fl ow
at a minimum of sixteen feet (16') of head.

1.3 Plumbing

Each Laminar Jet requires a 1½" to 2" PVC main
feed line with 1" PVC entering the Deck Box. An
adjustment valve and a check valve are also required.
Valves should be placed as far from the Deck Box
as possible to minimize water turbulence (refer to
Figures 1 and 2 and Table 1).

1.4 Conduit/Fiber Optics (Optional)

If installing fiber optics, each Laminar Jet will
require 100 to 150 strand fi ber optic cable. 150 strand
cable is recommended due to the enhanced lighting
effects. Install a 120 VAC line as per the fi ber optic
manufacturer and local code requirements.

Locate the four bonding lugs on the unit. One lug
is mounted on each side of the jet assembly metal
mounting bracket (2 total). One lug is mounted on
the inner wall of the Deck Box above the water inlet
standpipe. The remaining lug is mounted on the outer
wall of the box, directly connected to the inner lug.

Page 4

Pump

Filter

Adjustment Valve

(Globe Valve

Recommended)

Water Throw

8' Maximum

Water Height

7' Maximum

Jandy Laminar

Nozzle

Check Valve

Jandy 3-Port Valve

Use 5 feet of 1" PVC flex pipe.

Use 1” sweep elbow.

2" Pipe

Figure 1. Basic Plumbing Diagram for Laminar Jet with Deck Box

"C" -

Inlet Lines to
Laminar Jet Deck
Box

(Maximum 6 Lines
per Plumbing Loop)

Globe Valves

"B" - Plumbing
Loop

"A" - Main Feed Line

Check Valve

6'

max

Laminar Deck Box

Table 1. Multiple Jet Setup

Number of Deck

Jets at rate of 10

GPM

(gallons per

minute)

2 1½" 1"
3 1½" 1½"
4 2" 1½"
5 2" 1½"
6 2" 1½"

Return Lines

Recommended Pipe

Size within 25' of

equipment

ABCD

1"
1"
1"
1"
1"

1½"
1½"

2"
2"
2"

Jandy 3-Port Valve

"A"

"D" - Bypass/Bleed Off Line

(P/N 4715 if

Note: If using a high head pump,
plumb a cartridge filter inline.

Figure 2. Plan View of Plumbing Loop for Multiple Laminar Jets

is 1½" or P/N 4717 if "A" is 2")