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UNVENTED HOT WATER SYSTEM
INSTRUCTIONS
PLEASE LEAVE WITH HOUSEHOLDER
IMPORTANT - Failure to install and maintain this system in
accordance with these instructions will invalidate the
manufacturer's warranty.
McDONALD ENGINEERS
HOT WATER SYSTEMS
FLEMINGTON ROAD, QUEENSWAY INDUSTRIAL ESTATE, GLENROTHES FIFE KY7 5QF
Tel : 01592 611123 Fax : 01592 611166
Email : sales@mcdonald-engineers.com Internet : www.mcdonald-engineers.com
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Table of Contents
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Summary of Contents for McDonald Engineers POWER flow 2000 Series
- Page 1 IMPORTANT - Failure to install and maintain this system in accordance with these instructions will invalidate the manufacturer’s warranty. McDONALD ENGINEERS HOT WATER SYSTEMS FLEMINGTON ROAD, QUEENSWAY INDUSTRIAL ESTATE, GLENROTHES FIFE KY7 5QF Tel : 01592 611123 Fax : 01592 611166...
- Page 2 2. Excessive use of flux can damage the IMPORTANT unit and especially the valves and expansion vessel. Avoid over-use and Installation should only be carried out by a ensure the system is fully flushed of ‘competent operative’ i.e. the installer must any debris or flux before connection.
- Page 3 6. The Tundish (E), which shows visible 9. On Indirect Units where a Coil is fitted discharge from the Relief Valves, is to to the cylinder, the supplied Two Port be in a prominent, visible and safe Motorised Zone Valve and Dual position away from any electrical Thermostat Controller (J) must be devices (likewise with the drain...
- Page 4 ONCE ALL THE PRECEDING INSTRUCTIONS HAVE BEEN FOLLOWED, COMMISSION THE SYSTEM. IMPORTANT COMMISSIONING - These instructions 5. Check the control thermostats on the must be followed. Immersion Heater/s (H) and the Dual Thermostat (J) are set no higher than After following the instructions on pages 60°C and that the High Limit 1 &...
- Page 5 Optional on Indirects Std. on 150 Direct Upwards Solar Units only See back page CHECKLIST A - Pressure Reducing Valve with Strainer. I - 15mm Drain-cock. A2 - Check Valve. J - Dual Thermostat Controller.* B - Expansion Relief Valve. K - 22mm Connections to Primary Coil.
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Page 6: Annual Maintenance
Ensure that the discharge of Contact McDonald Engineers to arrange hot water or steam at the Tundish (E) or the appropriate service program. final discharge point causes no danger and is not likely to injure anyone. -
Page 7: Water Discharge
Bar. If it does exceed 2.1 Bar the Pressure Reducing Valve should be replaced using a replacement supplied by IMMERSION HEATER McDonald Engineers. Next, check the FAILURE charge in the expansion vessel and If the Immersion Heater (H) is not heating recharge as below. -
Page 8: Technical Data
TECHNICAL DATA Weights Direct Indirect Empty (kgs) Full Empty (kgs) Full 75 Litre POWERflow 2000 120 Litre POWERflow 2000 150 Litre POWERflow 2000 180 Litre POWERflow 2000 210 Litre POWERflow 2000 300 Litre POWERflow 2000 Heat Up Times 10-60°C Direct Indirect 75 Litre POWERflow 2000 89 mins... - Page 9 INDIRECT POWERflow 2000 WIRING DIAGRAM WIRING DIAGRAM TWO 2 PORT ZONE VALVE (S-PLAN) DUAL THERMOSTAT WIRING HIGH LIMIT CONTROL 2 PORT (HTG) 2 PORT (DHW) CUTOUT STAT Br G Bl Bl 0 9 10 10 WAY WIRING CENTRE 5A SUPPLY PUMP ROOM STAT PROGRAMMER...
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Page 11: Annual Service Record
ANNUAL SERVICE RECORD IMPORTANT - Failure to install the cylinder correctly and maintain this record accurately, will invalidate the manufacturer’s warranty. DATE SERVICED BY COMMENTS... - Page 12 Single Coil Solar . Reference should be made to the solar equipment instructions. Maintenance: As per the instruction booklet and any requirements that the Solar Equipment dictates. McDONALD ENGINEERS HOT WATER SYSTEMS FLEMINGTON ROAD, QUEENSWAY INDUSTRIAL ESTATE, GLENROTHES FIFE KY7 5QF Tel : 01592 611123 Fax : 01592 611166 Email : sales@mcdonald-engineers.com Internet : www.mcdonald-engineers.com...
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