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Table of Contents
Summary of Contents for CR Remeha 400 solar
- Page 1 commercial Installation Manual Unvented Solar Water Heaters Installation & Servicing Instructions IMPORTANT Please read & understand all these instructions before commencing installation. Please leave this manual with the customer for future reference.
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Page 2: Table Of Contents
Contents 1. Introduction ...................3 1.1 General ....................3 1.2 Symbols used ..................3 1.3 Abbreviations ..................3 1.4 Liabilities .....................3 2. Safety ......................4 2.1 General safety warnings ..............4 2.2 Recommendations ................4 2.3 Specific safety instructions ..............4 3. Technical specifications ...............5 3.1 Technical data ..................5 3.2 ErP data .....................6 3.3 Dimensions and connections .............7 3.4 Electrical diagram(s) ................8... -
Page 3: Introduction
In the interest of UK customers, we are continuously 1. Introduction endeavouring to make improvements in product quality. All the specifications stated in this document 1.1 General are therefore subject to change without notice. The following instructions are offered as a guide to the Our liability as the manufacturer may not be invoked in user and installer. -
Page 4: Safety
2.3 Specific safety instructions 2. Safety WARNING 2.1 General safety warnings water discharges from DANGER temperature/pressure relief valve on the cylinder shut down the boiler. Do This cylinder is unvented and as such becomes not turn off any water supply. Contact a pressurised when in operation. -
Page 5: Technical Specifications
3. Technical specifications 3.1 Technical data Max direct kW rating Direct heat time (based on max kW rating in mins) Solar coil surface area m2 Auxiliary coil surface area m2 15 l/min 29.4 28.7 31.3 32.9 35.0 30.1 40.2 37.5 Solar coil rating (kW) 30 l/min 43.6... -
Page 6: Erp Data
Commercial Cylinder Expansion Vessel Mounting Kit Weights Volume (ltr) Size (ltr) 400 - 500 Floor Mounted 12kg Floor Mounted 17kg 1000 - 1250 Floor Mounted 24kg 1450 Floor Mouinted 38.5kg 2000 - 2500 Floor Mounted 41kg Table 3: Expansion vessel specification dependant on model Immersion allocation table 12kW 18kW... -
Page 7: Dimensions And Connections
3.3 Dimensions and connections 35° 30° 45° 40° Figure 1: General dimensions - Solar Item Connection 400I 500I Connection 800I 1000I Connection 1250I 1450I Connection 2000I 2500I 1500 1800 1906 2301 1937 2253 2011 2416 1/2"BSP 1090 1390 1/2" BSP 1502 1897 1/2"... -
Page 8: Electrical Diagram(S)
WARNING The high limit stat must always operate the zone valve in case of overtemperature. Thermostat Option 1 Control High Limit Br Bl Zone valve L = Optional control utilising zone valve end switch if required. Switch out Figure 2: Wiring diagram 1 Thermostat Option 2 Control High Limit... - Page 9 Earth Neutral Live Fuse (not supplied) Live marked ‘L’ Contactors (not supplied) Live Earth Neutral Cut-Out Temperature 80°C Immersion Heater Neutral terminal (Factorey set) marked 'N' Earth Typical head layout for Note: a single phase heater The 2 external contactors must be approved components certified for 10,000 cycles of operation for the contactor controlled by the Figure 2: Single phase wiring schematic...
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Page 10: Description Of The Product
Hot outlet 4. Description of the product 4.1 General description This product is a purpose designed unvented water heater. The unit has a stainless steel inner vessel, which ensures an excellent standard of corrosion resistance. The outer casing is a combination of resilient T&P connection thermoplastic mouldings and soft jacket. -
Page 11: Before Installation
appropriate safety devices are installed. 5. Before installation Situations where maintenance is likely to be neglected or safety devices tampered with. 5.1 Installation regulations Water supplies that have either inadequate pressure or where the supply may be intermittent. Situations where it is not possible to safely pipe WARNING away any discharge from the safety valves. -
Page 12: Transport
5.4 Transport Prior to installation the unit should be stored and transported in an area free from excessive damp or humidity. To aid installation, the water heater (800ltr upwards) is provided with lifting points, located at the top of the unit. -
Page 13: Installation
6.2 Water connections 6. Installation 6.1 General WARNING After reading the previous sections in this booklet, and Under no circumstances should the choosing a good location for the unit, please install, factory fitted temperature/pressure paying attention to the following hydraulic, electrical relief valve be removed other than and commissioning sections. - Page 14 the cold water combination valve and the cylinder. The valve can be fitted in any orientation to suit The location of the expansion vessel should allow the installation as long as the valve is installed with access to recharge the pressure as and when the direction of flow arrows pointing in the correct necessary.
- Page 15 Solar connections Discharge The lower (solar) coil must be connected to a It is a requirement of Building Regulation G3 that any fully pumped solar primary circuit with its own discharge from an unvented system is conveyed to safety control which must be installed as per the where it is visible, but will not cause danger to persons in manufacturers instructions.
- Page 16 the valve outlet and the tundish (see fig 8). (b) be a separate branch pipe with no sanitary appliances connected to it; Note: To comply with the Water Supply (Water Fittings) (c) if plastic pipes are used as branch pipes carrying Regulations, the tundish should incorporate a suitable discharge from a safety device they should be either air gap.
- Page 17 Maximum resistance allowed for a straight length of 28mm pipe (D2) from a G1/2 temperature relief valves equates to 18m. Subtract the resistance of 4 No. 28mm elbows at 1.0m each = 4.0m Therefore the maximum permitted length equates to: As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory.
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Page 18: Electrical Connections
6.3 Electrical connections In case of difficulty contact service support; contact details are available on page 32 of this booklet. WARNING Disconnect from the mains electrical supply before removing any covers. Never attempt replace immersion heater(s) other than with the recommended immersion heater(s). -
Page 19: Commissioning
Temperature control 7. Commissioning clockwise to increase, counter-clockwise to 7.1 General decrease After filling the installation with water in the previous section please follow the following steps to complete the installation of the unit. WARNING DO NOT operate the immersion heaters or primary circuit until the cylinder has been filled with water. -
Page 20: Operation
8. Operation 8.1 General WARNING water discharges from temperature/pressure relief valve on the cylinder shut down the heat source. Do not turn off any water supply. Contact a competent installer for unvented water heaters to check the system. Do not tamper with any of the safety valves fitted to the system. -
Page 21: Maintenance
Descaling immersion heater(s) 9. Maintenance Turn off the mains water supply, isolate the electrical supply and turn off boiler 9.1 General Attach a hosepipe to the drain cock having sufficient length to take water to a suitable discharge point Maintenance requirements below the level of the unit. - Page 22 Re-commissioning Check all electrical and plumbing connections are secure. Close the drain cock. With a hot tap open, turn on the cold water supply and allow unit to refill. DO NOT switch on the immersion heater(s) or boiler until the unit is full. When water flows from the hot tap allow to flow for a short while to purge air and flush through any disturbed particles.
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Page 23: Troubleshooting
10. Troubleshooting Water contained in the cylinder may be very hot, especially following a thermal control failure. Caution must be taken when drawing water from the unit. WARNING Do not tamper with any of the safety valves The fault finding chart (table 8, below) will enable or controls supplied with the cylinder as this operational faults to be identified and their possible will invalidate any guarantee. -
Page 24: Decommissioning
11. Decommissioning 11.1 Decommissioning procedure Isolate electrical supplies and make safe Isolate the water supply Drain the cylinder Drain the solar & auxiliary circuits Remove cylinder Cap pipework Environmental information Products are manufactured from many recyclable materials. At the end of their useful life they should be disposed of at a Local Authority Recycling Centre in order to realise the full environmental benefits. -
Page 25: Accessories
TEMPERATURE AND PRESSURE RELIEF VALVE - 1 1/4" 95605196 DUAL CONTROL THERMOSTAT 95612650 CUT-OUT THERMOSTAT 95612652 2 PORT MOTORISED VALVE (28mm) 95605884 2 PORT MOTORISED VALVE (DN 32) 95605198 2 PORT MOTORISED VALVE (DN 40) 95605199 1/2” BLANKING STAT POCKET 95607690 1”... - Page 26 Part No: 95:611:025 Part No: 95:607:396 Part No: See table Part No: 95:605:176 9 - 12 Part No: See table Part No: 95:605:182 Part No: 95:607:367 Part No: 95:607:425...
- Page 27 16-18 19 -20 Part No: See table Part No: See table 22-23 Part No: 95:605:192 & 95:605:194 Part No: 95:605:103 Part No: 95:605:196 Part No: 95:612:650 Part No: 95:612:652 Part No: 95:605:884...
- Page 28 29-30 Part No: 7031564 & 7031565 Part No: 95:607:690 Part No: 95:607:691 Part No: 95:980:025 35-36 Part No: 95:980:009 Part No: 95:607:366 & 95:607:404 38-39 Part No: 95:605:177 Part No: 7031586 & 7031587...
- Page 29 41-42 Part No: 7031588 Part No: 7031595 & 7031596...
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Page 30: Benchmark Checklist
Benchmark checklist... -
Page 31: Service Records
Commissioning & service records... -
Page 32: Guarantee
Guarantee Guarantee Terms Remeha guarantees the water heater cylinder against faulty manufacture or materials for a period of two years from the date of purchase including parts and labour. This two year guarantee is extended to five years for the cold water control valve and to 25 years (from the date of installation) for the stainless steel inner vessel.