Hyco IN88 User manual

Electrical Instantaneous Water Heater Manual for IN88
1
ELECTRICAL INSTANTANEOUS WATER HEATER
MANUAL FOR IN88
PREFACE
Thank you for purchasing the IN88 electrical instantaneous water heater. Before
installation please read the manual carefully. This manual will allow you to install and
operate the water heater correctly and safely.
CONTENTS
1. Main Functions & Characteristics…………………….....1
2. Technical Specifications…………………………………2
3. Installation………………………………………….........2 + 3
4. Operating Instructions…………………………………...3 + 4
5. Troubleshooting……………………………………….....4
Guarantee
This unit is guaranteed for one year against defective materials and/or workmanship.
Unless otherwise agreed in writing, Hyco Manufacturing will at its discretion repair or
replace the unit. Consequential and related losses and costs are expressly excluded.
Hyco Manufacturing Castleford WF10 1NX Tel [phone]
CE
MAIN FEATURES
 Protected against over heating, dry heating, over pressurising and water
leakages.
 Fitted with a high quality heating element.
 Water is heated when you need it. No storage energy losses.
 DSC Quartz Heat tube technology provides exceptionally fast response.
 High efficiency heating (98%)
 Operates with low water pressure – a minimum of just 0.03MPa.
 Convenient – more than one outlet can be supplied.
 Normal taps can be used (sprayhead taps are recommended)
 8 different power stages are available
 Digital temperature and power display.
 Patented product.
TECHNICAL PARAMETERS AND SPECIFICATIONS
Model IN88

Electrical Instantaneous Water Heater Manual for IN88
2
Rated Voltage AC220V/AC230V
Rated Frequency 50Hz/60Hz
Power Range 8.8KW Max (8 stages)
Water Rate at 38◦c
(1/min)
> 9.2 (depends on inlet temperature)
Water Temperature 60 C
Water Proof IPX4
Water Pressure Range
(Mpa)
0.03 – 0.6
Insulation Class
I
INSTALLATION
Attention!
 The water heater should be installed by a qualified electrician in accordance
with the latest edition of the IEE Wiring Regulations.
 This heater MUST BE EARTHED
 The water heater is installed VERTICALLY .
1. Fix back plate (bracket) to wall
Fix the metal back plate on the wall using plastics wall plugs and screws supplied.
2. Attached heater to bracket

Electrical Instantaneous Water Heater Manual for IN88
3
Put the protruding parts of the back plate into the rectangular holes on the back of the unit
and fix with supplied screws.
3. Connect to water supply
Connect combined inlet valve and pressure relief valve to heater and connect to copper
pipe.
4. Connect hot outlet to one or more hot water taps or other outlets.
Note that simultaneous use of more than one outlet will reduce the delivered water
temperature. The use of spray head taps is recommended in cold water conditions (eg
UK winter).
5. Connection to Electricity supply
The power MUST be connected by a professional electrician. The use of an RCD circuit
breaker is recommended.
All wiring must be rated to 8.8kW load. The unit MUST be EARTHED.
OPERATING INSTRUCTIONS
 When operating the water heater for the first time allows water to run through
the unit before switching the power on.
 If the unit freezes at any time on the inside or outside DO NOT switch on the
water heater in order to melt the ice. The unit must be left for the ice to melt
on its own.
To confirm that the unit is installed properly, operate it as follows:
1. To power the unit
Switch heater on using buttons on the left hand side of the heater.
Turn on the inlet water valve fully on and adjust the outlet valve to produce an acceptable
temperature/flow rate combination.
2. Adjust power setting
The right hand buttons allows the kW power to be adjusted. In normal UK conditions this
should be set to maximum.
A lower power setting will reduce the temperature for a given flow rate. The current
outlet temperature and power setting are shown on the digital display.

Electrical Instantaneous Water Heater Manual for IN88
4
The unit will shut down if an excessive temperature is reached (above 60 degrees).
When you off the water flow the unit will stop heating automatically.
If the unit isn’t in use for a long time switch off the valve and the power.
Note: Relief Valve Drain
The relief valve (fitted to the water inlet) may discharge water in case of unit
malfunction, incorrect installation or excess incoming water pressure. An appropriate
DRAIN or other provision must be fitted to prevent water damage to property.
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE REMEDY
NO HOT WATER No electrical power supply Check the power supply to the unit.
WATER IS TOO COLD
A Voltage is too low.
B Water flow rate is too
high.
C Power setting is too low.
A Check the voltage to the
unit.
B Adjust valve to reduce
water flow rate.
C Choose a higher power
setting.
WATER IS TOO HOT
A Water flow is too low.
B Something is blocking the
water flow.
C Power setting is too high.
A Adjust the valve to
increase water flow.
B Clean the inlet filter and
the spray head.
C Choose a lower power
setting.
HOT WATER
INADEQUATE
A Very cold inlet water
(typically winter) A Fit spray head to taps.