HOTSTREAM HS4/1 User manual

HOTSTREAMHOTSTREAM
CONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
• Provides a continuous supply
of hot water
• Turns cold water into HOT – Instantly!HOT – Instantly!
• Can be used for shower,
handwashing or hairdresser
• Compact and wall-mounted,
saving oor space
• No storage of water or long
hot pipe runs
Hairdresser
HS / HDT
Basin
HS / BT
Oversink
HS / OST
Shower
HS / ST

HOTSTREAM LTD
199 Bush Road, RD2 Mosgiel, Dunedin 9092.
Phone: [phone], Email: [e-mail],
Web: www.hotstream.nz
CONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
HOTSTREAM SPECIFICATIONS
HOTSTREAM is a robust unit, designed
especially for domestic and commercial /
sports club / hairdresser applications.
(Sold seperately)
Easily tted to a new or existing shower,
handbasin or sink.
HOTSTREAM is designed to serve a single
shower or handbasin and sink.
HOTSTREAM open vented tapware
must be used (HOTSTREAM taps & units
purchased separately).
Product Durability: HOTSTREAM has been designed for
a minimum of 6000 operations.
New Zealand Building Code: HOTSTREAM meets the
requirements of the New Zealand Building Code clause
G12.4.12.1(b), (i.e. maximum 55°C).
HOTSTREAM is suitable for connection in Zone 1 area
NZECP2. Appliance must be earthed and have an isolating
switch.
Water Pressure:
Check water pressure before installtion.
Minimum 35psi – 250 KPA
Maximum 75psi – 500 KPA
Inlet connection ½” BSP – 15mm
Outlet / Tapware: Open vented taps
(Only HOTSTREAM tapware
should be used)
Electrical Power:
Please note: These products HS 4/1 230V 18 amps
must have an independent (4kW single phase)
power supply from the HS 6/1 230V 25 amps
switchboard with an (6kW single phase)
isolating switch. HS 7/1 230V 30 amps
(7kW single phase)
HS 8/1 230V 35 amps
(8kW single phase)
HS 8/2 400V 20 amps
(8kW two phase)
HS 10/2 400V 25 amps
Flow Rates at 40°C: (10kW two phase)
(average shower temp HS 4/1 = 2.51/min
HS 6/1 = 3.3l/min
with incoming water at 14°C) HS 7/1 = 3.51/min
HS 8/1 = 4.4l/min
HS 8/2 = 4.4l/min
HS 10/2 = 5.5l/min
Warranty: 1 year domestic
or commercial
Pressure Limiting Valve: We recommend the tting of
a 350KPA pressure limiting valve if the incoming water
pressure exceeds 500KPA.
Your local stockist:
For all spare sparts contact
your local merchant.
HOTSTREAM
CONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
Installation Instructions
for new and existing heater replacement
To the installer, Plumber or Electrician:
• HOTSTREAM is a push through (open vented) system.
• Only use HOTSTREAM taps (open vented) with this
heater (hot on the left, cold on the right).
• DO NOT USE old REINHARDT tapware or unvented taps.
i.e. Stoptaps on outlet of units.
• Please check the water pressure before installation.
The water pressure must not exceed 500kPa (72psi).
If so, a pressure-limiting valve will need to be tted. (High
water pressure will damage the unit).
• UNIT REPLACEMENT: (ISOLATE POWER) CHECK
EXISTING TAP OUTLETS, SHOWER HEADS, HOSES,
SINK ARMS AND ROSES FOR BLOCKAGES AND
WATER PRESSURE WHEN REPLACING A HEATER UNIT.
• Before turning on the power to the HOTSTREAM unit,
please run the water through the unit for AT LEAST 5
MINUTES to remove air from the element housing.
This should be done using the hot tap.
• If screwing unit back to the wall, see Hotstream
Troubleshooting Guide, section 3, No.7.
• 1 Year Warranty – Domestic or Commercial.

CONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
HOTSTREAM
CONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
Installation Instructions
for new and existing heater replacement
To the installer, Plumber or Electrician:
• HOTSTREAM is a push through (open vented) system.
• Only use HOTSTREAM taps (open vented) with this
heater (hot on the left, cold on the right).
• DO NOT USE old REINHARDT tapware or unvented taps.
i.e. Stoptaps on outlet of units.
• Please check the water pressure before installation.
The water pressure must not exceed 500kPa (72psi).
If so, a pressure-limiting valve will need to be tted. (High
water pressure will damage the unit).
• UNIT REPLACEMENT: (ISOLATE POWER) CHECK
EXISTING TAP OUTLETS, SHOWER HEADS, HOSES,
SINK ARMS AND ROSES FOR BLOCKAGES AND
WATER PRESSURE WHEN REPLACING A HEATER UNIT.
• Before turning on the power to the HOTSTREAM unit,
please run the water through the unit for AT LEAST 5
MINUTES to remove air from the element housing.
This should be done using the hot tap.
• If screwing unit back to the wall, see Hotstream
Troubleshooting Guide, section 3, No.7.
• 1 Year Warranty – Domestic or Commercial.

HOTSTREAM TAPWARE - OPEN VENTED
The HOTSTREAM instant hot water unit is not designed to be
used with any other tapware other than HOTSTREAM tapware
in a shower or bathroom vanity or sink.
The reason that other tapware cannot be used is that the
HOTSTREAM unit is designed to be OPEN-VENTED and the
porting inside of the tapware allows the water to be controlled
at the inlet rather than the outlet, while still having the ability to mix the cold supply
water with the hot outlet water to achieve the desired temperature.
Open-vented means there is no restriction or blockage on the outlet of the
HOTSTREAM unit. i.e. So the unit is not pressurised.
WARRANTY – Failure to comply with the attached instructions will void the
warranty. This includes failure to check the unit inlet and outlet pressures. Defects
to the product caused by accident, negligence or Act of God will void the warranty.
HOTSTREAM TAPWARE - OPERATING INSTRUCTIONS
PLEASE ENSURE THIS INFORMATION IS GIVEN TO YOUR CUSTOMER
Manufactured and Distributed by: HOTSTREAM LTD
199 Bush Rd, RD2 Mosgiel, Dunedin 9092. Phone: [phone], Email: [email protected]
Web: www.hotstream.nz
This unit is a fully automatic resistance-heated water heater. After this heater has been
correctly installed the heater may be used as follows:
Cold Water (ambient temperature) only
*Turn cold tap on
(blue) to desired
ow.
Hot Water
*Turn on hot tap (red),
indicator lamp will light.
Depending on power a
water temperature of approx
55°C may be obtained at
minimum ow rate.
Indicator lamp
WATER TEMPERATURE / FLOW
Unlike other taps the more you
open a HOTSTREAM hot tap the
cooler the water becomes. This
is quite normal for this type of
system. If you want to make the
water hotter slowly close the hot
tap until the desired temperature
is reached.
If you want to make the water
cooler slowly open the hot tap
until the desired temperature is
reached or slowly open the cold
tap until the desired temperature
is reached.
This will differ between Summer
and Winter as the water becomes
colder in Winter.
HOTSTREAM Installation Instructions
1. ELECTRICAL REQUIREMENTS
• This appliance must be earthed.
• Cold water resistivity rating 1300 Ohm.cm at 15°C.
• This appliance must be wired and connected by a registered
electrician in accordance with local wiring regulations.
WARNING: A supply isolation switch MUST be tted.
• Electrician to check for cable size to prevent voltage drop.
• Using the hot tap, air must be bled from heater before electrical
power is switched on.
•This is an open outlet appliance. Pressure rating 0 pa.
ONLY HOTSTREAM TAPS AND FITTINGS MUST BE USED
2. PLUMBING REQUIREMENTS
1. Minimum water pressure: 240 kPa (35psi)
Maximum water pressure: 517 kPa (72psi)
2. All units must be installed by a registered Plumber.
3. The Hotstream heater is an open outlet appliance. The
outlet acts as a vent and must always remain open to the
atmosphere. For this reason, only Hotstream taps and
fittings must be used.
4. All air must be bled from heater and pipes by turning
on the hot tap and letting run for 5 minutes BEFORE
the electricity is switched on. This procedure must be
followed whenever the water supply is interrupted, turned
off or whenever there is a risk of air pockets being present
in the water supply. In areas prone to air locks in the water
supply, an air eliminator valve should be fitted.
5. In New Zealand: an insolating stop-cock must be fitted
to the cold water supply for all models.
6. Take care during installation of heaters. Unnecessary force
can result in breakage.
7. For multiple installations where all units are likely to be
in operation at the same time (e.g. bank of showers,
washrooms, hairdressing salons etc) it is CRITICAL that
the plumbing allows for sufcient water ow, regardless
of pressure. In general, the diameter of the cold water
pipe must increase proportionately as the number of units
increases, in order to compensate for pressure drops when
all units are operating. As an example, for a bank of 8 units,
a 1½” feed pipe would generally be required rather than a
½” pipe, depending upon pressure.
8. We recommend tting a 350 kPa pressure limiting valve
to all installations where the incoming pressure exceeds
500 kPa.
WARNING: Water heater must not be switched on if there is a possibility that the water in the heater is frozen.
3. FOR HEATERS INSTALLED ABOVE THE BASIN OR IN SHOWERS
1. For new installations one ½”/15mm BSP female threaded
cold water supply socket is required.
2. Screw the mixing tap into the water main nishing in a
horizontal position as illustrated in Fig. 1.
3. Temporarily mount heater unit minus front cover. Ensure
distance of mixing tap from wall surface is compatible
with distance required to attach the unit directly a at wall
surface. If this is not possible - see attachment.
4. Place the supplied washer in to each connecting nut and
mount the heater into position. When tightening hexagonal
nuts on mixer do not apply excessive force.
5. Turn on the water mains supply.
6. Bleed all air from heater and pipes by turning on
the HOT tap and let run for 5 minutes BEFORE the
electricity is switched on.
7. A packer may be necessary to allow the unit to be screwed
back with even pressure, with no excess pressure on the
heater unit (NB: excess pressure on the back mounting
cover will cause the unit to leak.
4. FOR HEATERS INSTALLED BENEATH THE BASIN
1. Fix the three-way combination tap securely to the hand
basin or kitchen bench, ensuring that the sealing washers
supplied are tted correctly.
2. Turn off the water mains supply and close both taps of the
mixer.
3. Connect the short pipe to the cold water mains control tap.
4. Connect the long pipe (with the blue arrow pointing
downwards) to the inlet side of the heater as shown by
the arrow on the heater. (This is the cold water supply to
the heater).
5. Connect the pipe with the red arrow to the outlet of the
heater. Do not forget the washers.
6. Turn on the water mains supply.
7. Bleed all air from the heater and pipes by turning
on HOT tap and let run for 5 minutes BEFORE the
electricity is switched on.

HOTSTREAM TAPWARE - OPEN VENTED HOTSTREAM Installation Instructions
1. ELECTRICAL REQUIREMENTS
• This appliance must be earthed.
• Cold water resistivity rating 1300 Ohm.cm at 15°C.
• This appliance must be wired and connected by a registered
electrician in accordance with local wiring regulations.
WARNING: A supply isolation switch MUST be tted.
• Electrician to check for cable size to prevent voltage drop.
• Using the hot tap, air must be bled from heater before electrical
power is switched on.
•This is an open outlet appliance. Pressure rating 0 pa.
ONLY HOTSTREAM TAPS AND FITTINGS MUST BE USED
2. PLUMBING REQUIREMENTS
1. Minimum water pressure: 240 kPa (35psi)
Maximum water pressure: 517 kPa (72psi)
2. All units must be installed by a registered Plumber.
3. The Hotstream heater is an open outlet appliance. The
outlet acts as a vent and must always remain open to the
atmosphere. For this reason, only Hotstream taps and
fittings must be used.
4. All air must be bled from heater and pipes by turning
on the hot tap and letting run for 5 minutes BEFORE
the electricity is switched on. This procedure must be
followed whenever the water supply is interrupted, turned
off or whenever there is a risk of air pockets being present
in the water supply. In areas prone to air locks in the water
supply, an air eliminator valve should be fitted.
5. In New Zealand: an insolating stop-cock must be fitted
to the cold water supply for all models.
6. Take care during installation of heaters. Unnecessary force
can result in breakage.
7. For multiple installations where all units are likely to be
in operation at the same time (e.g. bank of showers,
washrooms, hairdressing salons etc) it is CRITICAL that
the plumbing allows for sufcient water ow, regardless
of pressure. In general, the diameter of the cold water
pipe must increase proportionately as the number of units
increases, in order to compensate for pressure drops when
all units are operating. As an example, for a bank of 8 units,
a 1½” feed pipe would generally be required rather than a
½” pipe, depending upon pressure.
8. We recommend tting a 350 kPa pressure limiting valve
to all installations where the incoming pressure exceeds
500 kPa.
WARNING: Water heater must not be switched on if there is a possibility that the water in the heater is frozen.
3. FOR HEATERS INSTALLED ABOVE THE BASIN OR IN SHOWERS
1. For new installations one ½”/15mm BSP female threaded
cold water supply socket is required.
2. Screw the mixing tap into the water main nishing in a
horizontal position as illustrated in Fig. 1.
3. Temporarily mount heater unit minus front cover. Ensure
distance of mixing tap from wall surface is compatible
with distance required to attach the unit directly a at wall
surface. If this is not possible - see attachment.
4. Place the supplied washer in to each connecting nut and
mount the heater into position. When tightening hexagonal
nuts on mixer do not apply excessive force.
5. Turn on the water mains supply.
6. Bleed all air from heater and pipes by turning on
the HOT tap and let run for 5 minutes BEFORE the
electricity is switched on.
7. A packer may be necessary to allow the unit to be screwed
back with even pressure, with no excess pressure on the
heater unit (NB: excess pressure on the back mounting
cover will cause the unit to leak.
4. FOR HEATERS INSTALLED BENEATH THE BASIN
1. Fix the three-way combination tap securely to the hand
basin or kitchen bench, ensuring that the sealing washers
supplied are tted correctly.
2. Turn off the water mains supply and close both taps of the
mixer.
3. Connect the short pipe to the cold water mains control tap.
4. Connect the long pipe (with the blue arrow pointing
downwards) to the inlet side of the heater as shown by
the arrow on the heater. (This is the cold water supply to
the heater).
5. Connect the pipe with the red arrow to the outlet of the
heater. Do not forget the washers.
6. Turn on the water mains supply.
7. Bleed all air from the heater and pipes by turning
on HOT tap and let run for 5 minutes BEFORE the
electricity is switched on.
Hot inlet Cold inlet
O Ring
Right to left

HOTSTREAM Installation Instructions
ATTENTION PLUMBERS
The heaters must be mounted in a horizontal position either as
illustrated in (a) or (b). They must not be mounted vertically -
refer (c). Also, after installation, check that the pressure switch
activates before electric power supply is connected.
NOTE: Screw D is set after testing of the heater in the factory
and is sealed with enamel. DO NOT adjust this screw or the
warranty is void.
OPERATING INSTRUCTIONS
The Hotstream is a fully automatic resistance-heated water
heater. After the heater is properly installed cold water may
be obtained by turning on the cold water tap; hot water by
turning on the hot water tap. With the latter, the indicator
lamp switches off, water temperature is about 55°C. (The
quantity depends on the kW power of the heater). The further
the hot water tap is turned on, the water ow will increase
and temperature decrease. Now you can select a water
temperature between 40°C and 55°C by increasing or reducing
the ow from the hot water tap without using the cold tap.
MAINTENANCE
CAUTION: Always isolate main power before removing cover.
Dirt Removal: Every few years or more often in areas of dirty
water supply, sediment build-up in the water lter may prevent
the water ow from activating the heater. When this occurs,
unscrew nuts joining heater to tap body.
Cover Removal: Remove cover screws adjacent to water inlet
and carry out steps 1 and 2.
Gently lift heater to allow access to the inlet water pipe. With a
small screwdriver, lift rubber “O” ring out of inlet pipe. Remove
lter, rinse it under cold water to clean it, then replace it and the
“O” ring. Reconnect heater to tap body, ensuring washers are
in place.
In areas of particularly hard or dirty water, consideration should
be given to the installation of an additional water lter.
TROUBLE SHOOTING
PROBLEM SOLUTION OR REASON
Microswitch malfunction - element ruptured. Replacement
instructions are included in new kit packs available from your
plumber’s merchant. DO NOT USE A DIFFERENT ELEMENT
THAN THAT WAS ORIGINALLY INSTALLED.
(i) No electric power OR
(ii) Insufcient water pressure OR
(iii) Water lter blocked. See Dirt Removal (above).
(i) Spray nozzle could be partially blocked by sediment.
Remove insert by undoing screw and clean OR
(ii) Water lter could be blocked. Remove and clean as
described under Dirt Removal (above) OR
(iii) If (i) or (ii) does not rectify the problem, increase water
pressure or replace heater with a smaller kW model.
Back pressure caused by spray nozzle being blocked. Clean
spray nozzle and problem will be rectied. If not, increase
water pressure.
Low voltage. It occasionally happens in rural areas of low
voltage. Low voltage wil give low water temperature. Your
electrician will be able to advise.
(a) Light works but no hot water.
(b) No light. By turning on the hot tap valve, the indicator lamp
does not glow.
(c) Hot water too hot to shower under when hot tap is fully
turned on.
(d) The same problem as in (c) above but by adding cold water
to reduce temperature the light switches off.
(e) After installation, hot water does not give a maximum
temperature rise of 40°C with the minimum water ow.
Manufactured and Distributed by: HOTSTREAM LTD
199 Bush Rd, RD2 Mosgiel, Dunedin 9092. Phone: [phone], Email: [email protected]
Web:www.hotstream.nz
Troubleshooting Guide

HOTSTREAM Installation Instructions
ATTENTION PLUMBERS
The heaters must be mounted in a horizontal position either as
illustrated in (a) or (b). They must not be mounted vertically -
refer (c). Also, after installation, check that the pressure switch
activates before electric power supply is connected.
NOTE: Screw D is set after testing of the heater in the factory
and is sealed with enamel. DO NOT adjust this screw or the
warranty is void.
OPERATING INSTRUCTIONS
The Hotstream is a fully automatic resistance-heated water
heater. After the heater is properly installed cold water may
be obtained by turning on the cold water tap; hot water by
turning on the hot water tap. With the latter, the indicator
lamp switches off, water temperature is about 55°C. (The
quantity depends on the kW power of the heater). The further
the hot water tap is turned on, the water ow will increase
and temperature decrease. Now you can select a water
temperature between 40°C and 55°C by increasing or reducing
the ow from the hot water tap without using the cold tap.
MAINTENANCE
CAUTION: Always isolate main power before removing cover.
Dirt Removal: Every few years or more often in areas of dirty
water supply, sediment build-up in the water lter may prevent
the water ow from activating the heater. When this occurs,
unscrew nuts joining heater to tap body.
Cover Removal: Remove cover screws adjacent to water inlet
and carry out steps 1 and 2.
Gently lift heater to allow access to the inlet water pipe. With a
small screwdriver, lift rubber “O” ring out of inlet pipe. Remove
lter, rinse it under cold water to clean it, then replace it and the
“O” ring. Reconnect heater to tap body, ensuring washers are
in place.
In areas of particularly hard or dirty water, consideration should
be given to the installation of an additional water lter.
TROUBLE SHOOTING
PROBLEM SOLUTION OR REASON
Microswitch malfunction - element ruptured. Replacement
instructions are included in new kit packs available from your
plumber’s merchant. DO NOT USE A DIFFERENT ELEMENT
THAN THAT WAS ORIGINALLY INSTALLED.
(i) No electric power OR
(ii) Insufcient water pressure OR
(iii) Water lter blocked. See Dirt Removal (above).
(i) Spray nozzle could be partially blocked by sediment.
Remove insert by undoing screw and clean OR
(ii) Water lter could be blocked. Remove and clean as
described under Dirt Removal (above) OR
(iii) If (i) or (ii) does not rectify the problem, increase water
pressure or replace heater with a smaller kW model.
Back pressure caused by spray nozzle being blocked. Clean
spray nozzle and problem will be rectied. If not, increase
water pressure.
Low voltage. It occasionally happens in rural areas of low
voltage. Low voltage wil give low water temperature. Your
electrician will be able to advise.
(a) Light works but no hot water.
(b) No light. By turning on the hot tap valve, the indicator lamp
does not glow.
(c) Hot water too hot to shower under when hot tap is fully
turned on.
(d) The same problem as in (c) above but by adding cold water
to reduce temperature the light switches off.
(e) After installation, hot water does not give a maximum
temperature rise of 40°C with the minimum water ow.
Manufactured and Distributed by: HOTSTREAM LTD
199 Bush Rd, RD2 Mosgiel, Dunedin 9092. Phone: [phone], Email: [email protected]
Web:www.hotstream.nz
HOTSTREAM
CONTINUOUS HOT WATER SYSTEMCONTINUOUS HOT WATER SYSTEM
SHOWER • HANDWASH • HAIRDRESSER
Troubleshooting Guide
HOTSTREAM INSTANTANEOUS WATER HEATER
Model: HS4/1, HS6/1, HS7/1, HS8/1
HS8/2, HS10/2
Volume Section Issue
Date Rev.
SPECIFICATION
N/A
FAULT CAUSE REMEDY
New unit pressure switch not
activating
1. Not enough pressure
2. Not tted to Hotstream
tapware
1. If multiple application t
manifold
2. Customer to t Hotstream
tapware if Hotstream unit
Used unit pressure switch not
activating
1. Pressure switch gasket
worn 1. Replace
Elements blowing
1. Worn microswitch
2. Aerated water supply
3. Lack of water
4. Incorrectly adjusted
5. Back pressure on element
1. Replace
2. Bleed air from supply
2a. Fit air eliminator valve
3. Check pressure
4. Contact nearest service
agent
5. Blocked outlet gauzes or
roses
When cold water is mixed the
light goes out 1. Blocked tap outlets 1. Clean or replace
Water not hot enough 1. Tap usage
2. Usage and kW rating
1. The more open the hot
tap the greater the ow
the cooler water and vice
versa
2. Contact nearest service
agent for advice
Water gets colder/warmer 1. Temperature uctuates
1. Pressure drop on system
caused by use of water
elsewhere in the house
HOTSTREAM LTD
199 Bush Road, RD2, Mosgiel, Dunedin 9092. Phone: [phone], Email: [email protected]
Web: www.hotstream.nz
(Table continued overleaf)

FAULT CAUSE REMEDY
No hot water
1. Supply fuse blown
2. Water pressure
3. Blocked tap outlets
4. Element blown
1. Replace
2. Check for correct pressure
3. Clean
4. Replace
Unit does not work
1. Blocked inlet lter
2. Faulty/damaged tapware
3. Water mains off
4. Insufcient pressure
5. Blocked tap outlet
6. Check position of micro
switch shifter arm (photo
back page)
1. Remove and clean
2. Contact nearest service
agent
3. Check with local body
4. Boost pressure
5. Clean
6. Adjust
Tapware leaks
1. Washer perished
2. Grit under washer or on
seat
1. Replace
2. Remove and clean
Neon does not glow 1. Neon blown
2. No power
1. Replace
2. Check power supply
Heater unit leaks
1. Loose bolts
2. Loose element screws
3. Base plate cracked
4. Blocked outlet gauzes
or Rose
5. Water pressure too high
6. Unit screwed back too
tightly or unevenly
1. Tighten to 28in/lbs torque
2. Tighten element screws
3. Replace unit
3a. Check pressure, if above
500Kpa (72psi) t pressure
limiting valve
4. Clean
5. Customer to t pressure
limiting valve
6. Walls screws not too tight
Troubleshooting Guide
(continued)
HOTSTREAM LTD
199 Bush Road, RD2, Mosgiel, Dunedin 9092. Phone: [phone], Email: [email protected]
Web: www.hotstream.nz

Troubleshooting Guide
(continued)
4 m/m
195 mm
252 mm
Depth 56 mm
Hotstream Back Plate Dimensions (Note: Not to scale)

Correct position of the
Micro switch rod bar
Micro Switch Assembly
Hotstream Basin Tap & Unit Installation

Hotstream Basin Tap & Unit Installation