HeatForm Velocity SwimJet User manual

Instructions for
Installation and Use
by HeatForm

2
Introduction
Velocity, by HeatForm
A game-changing counter-current unit, created with the competitive swimmer in mind.
The Velocity swim jet is a high-specifi cation unit, designed and built in the UK by HeatForm and
Lighthouse Pools - known for their innovative and high quality insulated HeatForm panel pool
system.
Velocity is a hydraulically driven, supremely powerful system that suits new installations and ret-
rofi ts alike. The current it produces is smooth, strong and easily adjustable, providing a premium
experience that beats lane swimming hands down.
The system consists of two main units:
• the hydraulic power pack, powered by an economical and reliable inverter driven motor
• the jet unit itself, hand built from tough fi breglass and housing the hydraulic turbine, meaning
there is no electrically powered motor in the water
The ingenious inverter drive is a tested, proven means of obtaining high performance from an
electric motor whilst using nothing more specialised than a 25A mains supply. It also means that
jet speed is easily varied, by means of a neat splashproof remote control fob.

3
Safety
instructions
Electrical Risk:
The electrical installation and commissioning should only be carried out by specialised and
authorised electricians. They should comply with all standards in force for electrical installations.
The inverter drive should be connected to:
• A residual current device (30mA)
• A separation device with a 3mm contact opening on all poles.
Mechanical Risk:
The turbine unit and power packs are heavy. Handling the items should be done using
appropriate means in order to avoid risks related to the carrying of heavy loads. The turbine
should be attached to the pool in such a way as to prevent any movement during use.
It is the responsibility of the installer to carry out a risk assessment and put any necessary
safety measures in place. In particular we remind you of:
• The risks of injury due to contact with the moving propeller
• The risks of drowning by becoming caught up in the turbine or by suction.
The unit complies with safety requirements as laid out in BS EN13451-3:2011, Part 3
Safety instructions for use:
This equipment is not designed to be used alone by anyone whose physical, sensory or mental
capacities are diminished, or by persons with no experience or knowledge.
The strong current created by the equipment can cause inexperienced swimmers to be in
diffi culty. This can lead to a risk of drowning. ALWAYS supervise children and non-swimmers.
Follow all normal pool safety guidelines. For public pools, complete a risk assessment prior to
installation and use.
Keep the remote control out of the reach of children.
The Velocity SwimJet is intended to be fi tted by appropriately qualifi ed, professional installers.
HeatForm and Lighthouse Pools cannot take responsibility for any
direct or indirect consequences of incorrect installation of the Velocity
SwimJet product.
The compliance of the fi nal installation is the responsibility of the
installer.

4
Technical
Specifi cations
Inverter Drive Unit Input: 230V AC, 50Hz, 25A supply.
Type B MCB required.
Inverter weight/
dimensions
8kg
31cm x 20cm x 25cm
Power Pack weight/
dimensions
75kg
70cm x 47cm x 38cm
Jet unit weight/
dimensions
75kg
Sound pressure level
- jet
70db (measured at 1m) when running at full power,
65db at half power
Sound pressure level
- power pack
66db (measured at 1m) when running at full power.
At half power: 58dB
Current draw Starting current: 16.5A when cold
Normal run current after 30 minutes at full power: 10.5A
Speed 1.8 m/s @ full speed (measured at 1m from grille)
1 m/s @ half speed (1900rpm, at 1m from grille)
Swim time Equivalent to a 200m swim in under 2 minutes at full speed

5
Technical
Specifi cations
Pool Criteria
The Velocity swim jet is suitable for use in both saltwater and freshwater pools. In order to
maintain and prolong the lifespan of the unit, your pool’s chemistry should be regularly checked
and maintained.
Parameters are as follows:
Temperature min 10°, max 32°C
Free Chlorine 0.5 - 2.0 mg/L
Salinity 4000 ppm
pH 7 - 7.4
Cyanuric Acid <30mg/L
Metals ≤ 0 ppm
Total Hardness max 300 mg/L CaCO2
Total Alkalinity 80 - 150 mg/L CaCO2
Contents of the Velocity swim jet kit:
Turbine unit
Turbine lid
Intake housing
(Lid and intake housing not included if using
behind vanity wall)
Wall fi xings - 2x M10 stainless steel chemfi x
anchors with nut and bolt
2x hose glands
Power Pack
Inverter Drive w/mains lead, motor lead and
control cable
2x hoses w/fi ttings
Remote control set (receiver and two
remote fobs)
Remote control Power Supply
2x 20l drums hydraulic fl uid
Also available:
• Remote Control receiver power extension lead
• Remote display unit (mirrors the inverter drive display)
• Spare remote control fobs
• Retrofi t lid

6
Installing the
Inverter Drive unit
The Inverter drive unit must be wall mounted on a stable wall that can bear its weight, using
appropriate fi xings (not supplied). It must be wall hung, in order to ensure free air circulation
around the heat sink on the rear. The unit is not suitable for fl oor standing. You must maintain
correct clearances as stated.
Wiring connections for the inverter drive are accessed via the front white panel. It requires a 25A
230v supply. It is supplied with 3m of cable; should you require more, cable size for this supply
must be adequate for this level of current draw and length of cable run, and should be calculated
by an appropriately qualifi ed person (i.e. electrician).
The Drive cannot be wired using a standard UK 3-pin plug. It should be wired to a commando
plug or hard wired to an appropriately protected supply.
In order to maintain its IP66 rating, cable glands must be used.
Wiring between the Inverter drive and the power pack MUST be suitable for a 3 phase motor - see
the section on installing the power pack.
The inverter drive unit is not suitable for outdoor installation. It should be protected from
extremes of heat and cold, from excessively damp or humid atmospheres, and splashes of water.
The inverter drive is already confi gured for use and will work when the remote control is
connected correctly.
WARNING: Electrical hazard. Wiring should
only be done by a qualifi ed electrician.

7
Dimensions H x W x D 310mm x 198mm x 252mm
Required clearances 200mm above and below, 10mm either side
Weight 8kg
IP Rating IP66x when correctly assembled
Required power supply 230v/50hZ 25A
Required power protection 30mA RCD, Class B MCB
Cable sizes - to remote 4 core 0.34mm2, 5m
Cable sizes - to motor 4 core (U, V, W and earth), 2.5mm2, 3m
Cable sizes - to mains supply 3 core, 2.5mm2, 2m
Maximum power draw 25A (in normal operation much lower)
Inverter Drive
specifi cations

8
Installing the
Remote Control
• Mount the receiver unit on a wall near the pool
• Mount in a place where it can be easily seen from where the remote
control will be normally be used (maximum 50m away).
• Safely and tidily run suitable wiring from the receiver back to the
inverter drive’s terminal block and wire as shown.
• The remote unit is supplied with a power supply (1A/12V DC) which
has a 1.5m cable attached.
• Extension cables are readily available or can be obtained from
Lighthouse Pools.
• The power supply plugs into the 2.1mm jack on the base of the
receiver unit.
• Do not use the power supply outdoors.
The supplied control wire (4 core) is plugged into the Inverter Drive
using the 4 pin plug on the supplied cable.
Your remote control comes pre-programmed. The fobs are splash proof but should not be
immersed in water. Replacement fobs are available from Lighthouse Pools.
Should you need to reprogramme the remote unit, or make use of the auxiliary relay, open the
receiver casing (2 screws in base) and carefully remove the PCB. The relays are allocated as
follows:
The spare Aux relay can be used for anything as
long as there is no more than 2A /12V load - for
example pool cover, lights.
To program, press the tiny “LRN” button. You
will hear a beep. Press the button on the remote
that you wish to assign. You will hear a beep
confi rming the signal has been received, then a
double beep confi rming the program has been set.
Press LRN once for relay 1, twice for relay 2, etc.
Take care not to damage the o-ring
seal when reassembling. Remember
to re-fi t the aerial.
Relay 1 Speed step up
Relay 2 Speed step down
Relay 3 On/Off
Relay 4 Aux

9
Installing the Hydraulic
Power Pack
The Hydraulic Power Pack consists of a tank (to be fi lled with hydraulic fl uid), a 5hp 3-phase
motor, a fi lter, pressure gauge and fl ow and return fi ttings. The motor powers a pump within the
tank, which generates high-pressure circulation of the hydraulic fl uid from the tank, through the
hoses, to the turbine in the pool, and back to the tank. There is also a temperature gauge on the
front of the tank.
The Power Pack should be set on level, stable, dry ground, indoors - normally in the pool plant
room. Protect the Power Pack from extremes of heat and cold, and humid or damp atmospheres.
As pool plant rooms often contain valuable and sensitive equipment, as well as hazardous
chemicals, it is wise to be mindful of securing the plant room by means of a combination lock or
keysafe.
Dimensions overall 70cm high x 47cm wide x 38cm deep
Weight 75kg
Tank capacity 40L
Motor type 4Kw, 3 phase
Hydraulic fl uid ISO 46 Rapeseed based bio-hydraulic
Maximum operating temperature 45°C (hydraulic fl uid)
Maximum operating pressure 110 bar
Hose specifi cation 1/2” thermoplastic, max 245 bar.
Wiring the Hydraulic Power Pack
The Inverter Drive supplies power to the motor on the power pack. This is a 3-phase motor. The
unit is supplied with 3 metres of 4-core cable to connect the two, complete with ring terminals.
Connect U to U (brown), V to V (black), and W to W (grey). Ensure the earths are properly
connected. Make use of the supplied cable glands.
If you need to put the drive and power pack further than 3m apart, you must use appropriately
sized cable.
Electrical Hazard: Wiring should only be done by appropriately qualifi ed
individuals

10
Installing the
Hoses
Supplied with the unit are fl ow and return hydraulic hoses. They are SAE 100R8 thermoplastic
1/2” hose with a maximum pressure rating of 245 bar. The hoses are 7.5m long.
The hoses are supplied complete with fi ttings. Do not overtighten. The hoses are pre-fi tted to the
jet unit and are colour coded. Ensure you fi t the hoses to the correct tappings.
The hose with the blue marker runs from the jet to the Power Pack. The hose with the red marker
runs back from the jet to the Power Pack. On the jet unit itself, the hose with the blue marker on
should be attached to the fi tting nearest to the fan. On the Power Pack, the hose with the blue
marker should be attached to the fi tting with the pressure gauge.
Should you require longer hoses, these should be sized appropriately and you may require
adaptors as well as more hydraulic fl uid. We do not recommend running any further than 50m.
Up to 7.5m 1/2” (supplied)
Up to 50m 1/2”
If you wish to run the hoses underground, use plastic pipework as ducting to protect them, and
bury them in a trench well below the surface to prevent any danger or disturbance. Line the
trench with sand and remove any sharp stones. Label the ductwork. Avoid any underground
joints.
Avoid sharp bends or kinks in the hoses.
Spilled hydraulic fl uid is slippery and can cause
falls as well as staining. Clean up any spills
immediately.

11
Installing the
Jet unit
The jet turbine unit should be installed in water at least 1m deep.
We recommend using the unit in a pool no smaller than 4m in length. We also recommend that it
should be mounted at least 1m away from side walls to minimise turbulence
The jet unit is hung by a wall bracket, over two stainless steel studs fi xed through the pool wall.
The unit can be installed on any type of pool provided the structure can maintain the unit’s
weight.
Suitable pool types:
• Shotcrete/Concrete/Gunite (tiled or lined)
• Fibreglass (tiled or lined)
• HeatForm Panels (lined)
• Other panel pool systems
The unit is suitable for both new pools and retrofi tting.
The jet unit is heavy. It is a 2 man lift to lower it
carefully into the pool.

12
Step 1 - Determine water line
The Velocity unit sits with the top of the unit itself on the water line, with the cap above the
water. It is therefore important to determine where the water line will be, prior to fi tting. It is
possible to install the unit into a pool that has been fi lled - all holes drilled are well above the
water line and will not need gasketing.
Installing the
Jet unit
Do not stand, sit or lean on the jet housing. Do not
use the unit as a table or drinks rest, or as a diving
board.

13
Step 2 - Assess and determine jet location
Installing the
Jet unit
Decide where to put the jet. Bear in mind hose routing, pool exit routes, and ensure an adequate
distance from the side walls (1m) and facing walls (4m) of the pool.
The Velocity unit has a sturdy HDPE bracket on the rear, which hangs on two stainless steel
studs protruding through the pool wall. This bracket uses the same dimensions as other
well-known brands of jet system, ensuring easy replacement/retrofi t.
The wall studs are held in place with chemically fi xed anchors and are very strong. However do
not allow anyone to sit, stand or lean on the jet unit.

14
Drill two holes 95mm deep, 12mm diameter as per the above. Insert the Chemfi x capsule into the
hole. Insert the anchor bolt and tighten. The bolt will burst the capsule and the chemical anchor
substance will fi ll the hole around the bolt. Leave the anchors to set for 45 minutes to 2 hours,
depending on how warm the wall and surrounding environment is.
The holes for the hoses should be 60mm diameter - this dimension may vary if you are using
different sized glands/hoses or if you are working on a panel pool.
Step 3 - Mark and drill holes for wall studs and hoses
Installing the
turbine

15
Step 5 - Hang the unit
Remove the lid of the Turbine housing. Push the hoses through the hose glands in the pool wall,
prior to lowering.
Lower the unit into the pool. It is wise to have one person in the pool to assist in positioning the
unit over the mounting studs.
Hang the unit off the studs. Secure in place with provided M10 stainless nut and washer.
Take care not to mark or scratch the unit or the pool liner/tiles.
There may be a small amount of slack in the hoses - do not attempt to pull them right through as
this may cause a kink. Simply allow the excess to lay fl at on top of the unit when replacing the
lid.
Whilst there is no electrical supply wired directly to the Velocity jet unit, you MUST connect
the earthing terminal for safety, and to guard against static generation in the hydraulic motor.
Connect an earth wire to the provided terminal, located on top of the jet unit under the cap.
Wire this to its own independent earth point - do not share the earth with any other equipment.
Step 6 - Fit earthing - MANDATORY
Installing the
turbine
Do not hold the jet unit by the
hoses.
The jet unit is heavy. Fitting the unit into a full
pool can be easier - the water helps support the
weight of the unit. This is at least a two man job.

16
Step 7 - Connections
Connect the hoses at the Power Pack. Ensure the fl ow and return hoses are the right way round.
Connect the power cables from the mains supply to the inverter drive, and the 3-phase cable from
the drive to the power pack.
Connect the remote control’s power supply and the control wire between the Inverter and the
Remote receiver.
Installing the
turbine

17
The procedure is identical to a normal installation, however rather than using the chemical
capsules to fi x the M10 stainless hanging studs, use the supplied square washer and nut on the
back of the panel.
You may fi nd that you need to drill larger holes to ensure the hose glands fi t correctly into the
panel.
Retrofi tting the unit into an existing in-ground pool is possible.
A stainless steel L-shaped bracket is available. Lift the coping stone at the pool edge and fi t the
bracket over the edge of the pool. The bracket has studs identical to the studs used in a standard
installation, and the unit hangs off these.
The coping stone is relaid and an M10 bolt is drilled through the coping downwards to fi x the
bracket.
However, the hoses are not fed through the pool wall because access (without excavation) is
impossible.
Instead, the hoses are run up and over the coping stone, and a special retrofi t lid is available
which covers the hoses, hiding them from view and preventing accidental damage.
The hoses can then be buried or run in ductwork as normal.
Installing the Velocity unit in a panel pool
Retrofi tting the unit
Installing the
turbine

18
Using a recess and
vanity wall
When the Velocity unit has been ordered as part of a HeatForm panel pool, it is possible to locate
the jet in a recess and hide the jet unit with a vanity wall as shown.
Both the intake housing and the lid are not required in this instance, and the unit will ship without
these parts. Instead, the grilles in the vanity wall prevent any kind of ingress of anything other
than water into the recess.

19
Using a recess and
vanity wall
Otherwise the installation process is exactly the same as before. Directions for installing the
vanity wall are included with the HeatForm pool.

20
Filling and starting
the system
Your unit is supplied with suffi cient fl uid to fi ll the system. You may require more fl uid if the
hoses you are using are longer than those supplied with the unit. If this is the case, contact
Lighthouse/HeatForm to order suffi cient fl uid. The fl uid used in your Velocity swim jet is
non-toxic vegetable oil. It is not intended for human consumption.
The fl uid is more viscous in low temperatures. As the unit runs, the viscosity will change - the
fl uid becomes thinner as it warms. The fl uid temperature gauge on the front of the power pack
should not exceed 45°C - it is unlikely to reach this point unless the unit is run continually for
several hours.
Motor
Pressure gauge
Flow/return hoses
Filler cap
Temperature gauge Drain point
Sensor (unused and blanked off)
Take care when handling drums of fl uid - they are heavy.
Spilled fl uid should be cleaned up immediately; it is very slippery. Protect any
porous surfaces from spills using a clean dust sheet.
Do not attempt to run the unit when the pool is empty.
Motor electrical connections