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05

1.  INTRODUCTION

The “RD TFT Series” is a high quality unvented enamelled steel domestic hot water cylinder suitable for 

domestic hot water systems where the cold mains water supply has a maximum supply pressure of 0.9 

MPa. Reduced performance is available at lower pressures but the units are not suitable for pressures 

lower than 0.15 MPa and flow rate of 20 litres per minute. 

Rointe offers the possibility to acquire all the necessary safety equipment to comply with legislation 

governing the installation of such systems.

2.  TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

MODEL NUMBER

KWI050DHW2 KWI075DHW2 KWI100DHW2 KWI150DHW2 KWI200DHW2

Storage capacity (l) 

50

75

100

150

200

Power (W)

2,400

2,400

2,400

2,400

2,400

Depth (mm)

404

404

404 

580

580

Width (mm)

404

404

404

580

580

Overall height incl T/P valve

785

1,035

1,270

1,160

1,220

Height excl T/P valve

685

935

1,170

960

1,120

Weight when full (kg)

68

100

132

194

256

Cold feed/hot draw off connections (mm)

15

15

15

22

22

Maximum water supply pressure (MPa)

0.9

0.9

0.9

0.9

0.9

System operating pressure (pre-set) (MPa)

0.6

0.6

0.6

0.6

0.6

Expansion vessel charge pressure (MPa)

0.15

0.15

0.3

0.3

0.3

Expansion relief valve set pressure (MPa)

0.6

0.6

0.6

0.6

0.6

Temperature and pressure relief valve settings:
Lift pressure (MPa)

0.7

0.7

0.7

0.7

0.7

Lift temperature (ºC)

90

90

90

90

90

INSTALLATION KIT (OPTIONAL)

0.3 MPa pressure reducing valve

0.6 MPa expansion relief valve

Expansion vessel ltr

8

8

12

12

18

15mm to 22mm Tundish

Isolation valve

PERFORMANCE

Heat up time 15 to 65 ºC (min)

73

110

117

175

235

Reheat time for 70% of contents (min)

51

77

82

123

165

2.1.  Component Check List

The KYROS water heater comes with the following components, please check through the 

components supplied and ensure that all parts are present: 

• 

Water Heater with sheathed heating elements, digital thermostat, TFT screen and manual 

reset thermal cut-out

• 

T/P valve 0.7 MPa 90ºC and electrolytic fittings

• 

Installation and user manual

Please contact our customer service department to know how to acquire the safety fittings.

Summary of Contents for Kyros

Page 1: ...KYROS Digital Electric Water Heater Wall hung Unvented INSTALLATION MANUAL ...

Page 2: ...02 ...

Page 3: ... stringent quality controls in order to comply with the most rigorous requirements for safety Thanks to its exclusive ROINTE Fuzzy Logic Energy Control technology the electric water heater achieves the maximum energy saving Before using the electric water heater we recommend you read this manual carefully in order to obtain proper operating information IMPORTANT THIS MANUAL SHOULD BE LEFT WITH THE...

Page 4: ...tions 05 3 General Requirements 06 4 Plumbing Installation 07 5 Electrical Installation 11 6 Filling and Commissioning 12 7 Servicing and Maintenance 12 8 Fault Finding 13 9 User Instructions 14 10 Guarantee 19 11 Installation Commissioning and Service Record 21 ...

Page 5: ...6 Cold feed hot draw off connections mm 15 15 15 22 22 Maximum water supply pressure MPa 0 9 0 9 0 9 0 9 0 9 System operating pressure pre set MPa 0 6 0 6 0 6 0 6 0 6 Expansion vessel charge pressure MPa 0 15 0 15 0 3 0 3 0 3 Expansion relief valve set pressure MPa 0 6 0 6 0 6 0 6 0 6 Temperature and pressure relief valve settings Lift pressure MPa 0 7 0 7 0 7 0 7 0 7 Lift temperature ºC 90 90 90 ...

Page 6: ...ll taps and fittings incorporated in the unvented system should have a rated operating pressure of 0 7 MPa or above 3 5 Location The unit is designed to be vertically wall mounted indoors in a frost free environment When choosing a suitable location for the cylinder consideration should be given to the routing of the discharge pipe to a convenient point and also the availability of an adequate pow...

Page 7: ...e to see if it is connected with the electrolytic fittings If not please contact us 4 3 Cold water supply For best results the cylinder should be fed by an uninterrupted supply pipe into the pressure reducing valve PRV with a maximum supply pressure of 0 9 MPa The cylinder should not be used on any system with a supply pressure below 0 15 MPa and a flow rate of less than 20 litres per minute 4 4 T...

Page 8: ...Figure 2 4 8 Tundish The tundish must not be positioned above or in close proximity of any electrical current carrying devices or wiring The installation should conform with the requirements of item 4 10 below 4 9 Connection arrangement for TFT KYROS Cylinder Water Flow To tap CW to tap Cold water inlet Hot water Outlet 1 2 5 3 4 300 MIN 100 MAX 6 9 8 7 10 11 11 1 Mains cold water supply 2 Stop co...

Page 9: ... that where children play or otherwise come into contact with discharges a wire cage or similar guard is positioned to prevent contact whilst maintaining visibility Discharge at high level e g into a metal hopper and metal down pipe with the end of the discharge pipe clearly visible tundish visible or not or onto a roof capable of withstanding high temperature discharges of water and 3 m from any ...

Page 10: ... discharge pipe D2 having 4 22 mm elbows and a length of 7 m from the tundish to the point of discharge The maximum resistance allowed for a straight length of 22 mm copper discharge pipe D2 from a diameter temperature relief valve is 9 0 m Subtract the resistance for 4 No 22 mm elbows at 0 8 m each 3 2 m Therefore the maximum permitted length equates to 5 8 m 5 8 m is less than the actual length ...

Page 11: ...rdance with the instructions given in Figure 4 5 2 Wiring diagram a The power supply to the heater must be via a double pole isolator switch or controller having contact separation of at least 3 mm to comply with BS 6141 and must be fully earthed In case of an electric problem check that the wiring follows the diagram below i The Earth wire is connected to the terminal on the cylinder marked with ...

Page 12: ...warm water is delivered 6 9 Check that while the unit is heating up no water exits from either the expansion relief valve or the temperature and pressure relief valve If water does exit through the valves check the expansion vessel pressure and installation 6 10 Increase the temperature to maximum and allow the unit to heat and the temperature to stabilise Check that no water discharges from the v...

Page 13: ...eaks and rectify as necessary 7 11 In the event of the manual reset cut out operating isolate the heater from the mains supply investigateandidentifythecauseoftheoperationofthiscut out rectifythefaultbeforemanuallyresetting the cut out via the reset button on the cut out Finally switch the mains electricity supply back on 8 FAULT FINDING Notice Disconnect electrical supply before removing any elec...

Page 14: ...cribe the functionality of the KYROS digital water heater with touch button control and TFT display 9 1 Front panel description TFT DISPLAY CONTROL PANEL 9 1 1 Main information display NUMBER FUNCTION 1 PROGRAMMING 2 DAYS OF THE WEEK 3 TIME OF DAY 4 TEMPERATURE SELECTED 5 LOCKING THE CONTROL PANEL 6 MANUAL AUTOMATIC FUNCTION 7 COMFORT ECONOMY ANTI FROST MODE 8 HEATER ELEMENT ON 4 3 2 1 6 7 5 8 ...

Page 15: ...lter the current settings To leave the time and date adjust feature wait 30 seconds or press after the date select 9 4 Blocking the control panel By pressing the keys and at the same time for 3 seconds we block the control panel the control panel symbol is activated and the keys will not respond when pressed The following symbol will appear on the screen if any button is pushed To unblock press ag...

Page 16: ...e 40ºC to 54 5ºC The symbol and the temperature will flash 3 After pressing the button once again the days of the week will start flashing and show as SEL1 SEL2 SEL3 We can go forwards and backwards using the button and Press to select the day or days that we wish to program 4 Pressing takes us to the hours we wish to program To change the hours use the or buttons The hours selected will show as 0...

Page 17: ...DVANCED FUNCTIONALITY 10 1 ANTI LEGIONNAIRE S DISEASE Our KYROS is designed with safety in mind and all the anti legionnaires disease regulations are complied with Each day the water heater is automatically set to its maximum temperature for two hours Whilst this mode is active you will see the following screen 10 2 WATER HEATING PROGRESS Press we can see the progress of the water heating process ...

Page 18: ...f the water heater 12 RECOMMENDATIONS 12 1 When a hot tap is turned on there may be a short surge of water this is quite normal with unvented systems and does not mean there is a fault 12 2 When you first fill a basin the water may sometimes appear milky This is due to very tiny air bubbles in the water which will clear very quickly 12 3 If water is seen dripping through the tundish at any time sw...

Page 19: ...ck from any salt deposits e It has been installed indoors in a frost free environment f The warranty card is completed and returned to Rointe within 90 days of installation g Electrolytic fittings must be properly installed Thiswarrantyisnottransferrable Thiswarrantydoesnotincludeclaimsduetofrostorlimescaledamage Proof of purchase will be required against any claim This guarantee does not affect y...

Page 20: ... 1 1 2 1 4 1 9 2 3 PLACEMENT Vertical Vertical Vertical Vertical Vertical WATER INTAKE inches 1 2 1 2 1 2 3 4 3 4 EMPTY WEIGHT kg 18 25 32 44 56 DIMENSIONS mm A 615 865 1 100 900 1 070 B 685 935 1 170 960 1 120 C 404 404 404 580 580 D 404 404 404 580 580 E 420 420 420 620 620 F 120 120 120 178 178 G 340 573 768 490 670 H 215 230 275 355 355 I 555 803 1 043 845 1 025 J 160 160 160 235 235 K 350 350...

Page 21: ...R DETAILS NAME ADDRESS TEL No INSTALLER DETAILS COMPANY NAME DATE ADDRESS TEL No INSTALLER NAME REGISTRATION No COMMISSIONING ENGINEER IF DIFFERENT COMPANY NAME DATE ADDRESS TEL No INSTALLER NAME REGISTRATION No CYLINDER DETAILS MODEL CAPACITY litres SERIAL NO ...

Page 22: ...opriate Service Interval Record below SERVICE 1 DATE SERVICE 2 DATE SERVICE ENGINEER SERVICE ENGINEER TEL NO TEL NO REGISTRATION NO REGISTRATION NO SIGNATURE SIGNATURE SERVICE 3 DATE SERVICE 4 DATE SERVICE ENGINEER SERVICE ENGINEER TEL NO TEL NO REGISTRATION NO REGISTRATION NO SIGNATURE SIGNATURE SERVICE 5 DATE SERVICE 6 DATE SERVICE ENGINEER SERVICE ENGINEER TEL NO TEL NO REGISTRATION NO REGISTRA...

Page 23: ...23 ...

Page 24: ...ROINTE UK Catalyst House 720 Centennial Court Centennial Park Elstree Herts WD6 3SY CUSTOMER SERVICE T 0143 259 8024 FAX NUMBER F 0143 259 8027 e mail rointe rointe co uk www rointe co uk MTKI14V1 ...

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