Hoval CT plus 180 Operating, Installation And Maintenance Manual Download Page 22

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Conservation of Energy

Protection of the Environment

Hoval Limited, Northgate, Newark, Notts NG24 1JN

Telephone: 01636 672711 Fax: 01636 673532

Summary of Contents for CT plus 180

Page 1: ...sued By IJR Technical Dept Approved KS Dated May 2003 By Appointment to Her Majesty the Queen Boiler Manufacturers Engineers Hoval Ltd Newark Revision No 2 Issued By IJR Technical Dept Dated June 2006...

Page 2: ...derstood before attempting to install commission or operate this unit Introduction Description of CT plus Calorifier Technical and Performance Details CT plus Calorifier Installation and Piping Layout...

Page 3: ...ce with current I E E regulations relevant British Stan dard and Codes of Practice Building Regula tions and Local Authority Bylaws Commissioning should be arranged via the heating engineer Hoval engi...

Page 4: ...ss water gen eration the key requirement is for adequate quan tities of hot water over a relatively short period On this basis the CT plus will provide significantly higher flow rates than its continu...

Page 5: ...280 CT plus 420 CT plus 520 CT plus 180 CT plus 280 520 Water Content Weight Primarylitres Secondary litres Dry kg Wet kg 61 180 177 418 94 280 211 585 114 420 248 782 135 520 302 957 Working Pressure...

Page 6: ...load on the boiler for the calori er primary supply Note for Hydraulic Testing The primary jacket should not be pressurised without rst lling and sealing the inner stainless steel vessel An adjustabl...

Page 7: ...rom Main Headers Temperature control by diverting valve 3 7 Primary Water Secondary Water Installation and Piping Layouts Installation Position the calori ers as required ensuring that side and inspec...

Page 8: ...Secondary Systems Key 1 Relief valve adjacent to calori er 2 Spring loaded non return valve Note On CT plus 180 calori ers the secondary return and cold feed connections are at the top The cold feed s...

Page 9: ...aken to ensure they can pass the flow rates at the required pressure Hovals standard unvented system kits are sized to reduced incoming pressure to 3 bar at a flow rate that meets the peak output of t...

Page 10: ...rning On balanced systems with a common PRV Strainer and Double check valve ensure that the valves are sufficiently sized to cope with both hot and cold water demand Hoval Unvented System Kits Hoval h...

Page 11: ...ts Feeding two or more calorifiers Cold Feed Two or more calorifiers can be installed with individual unvented system kits Where the expansion vessels have been sized to share the total system expansi...

Page 12: ...water supplies Unvented Systems Unvented System with balanced hot and cold water services Cold Feed The hot and cold water supplies can be balanced by utilizing the same strainer and PRV to control t...

Page 13: ...n out strainer on commissioning and annually Check Expansion relief valve setting annually by twisting the cap on top of the valve Checkexpansionvesselgaschargepressure isolate thevessel drainoffanywa...

Page 14: ...o oper ate between 30 deg C and 80 deg C and is usu ally set to 60 deg C Pre commissioning Important Always fill the second ary side of the calorifier before the primary Pressurising the pri mary when...

Page 15: ...hose to primary drain which should be in stalled in primary outlet and run the hose to a gulley Note The primary side of the calorifier MUST always be drained before the secondary The secondary MUST...

Page 16: ...overcurrentdevice The cables must enter the heater terminal box via asuitablecableglandtomaintaintheIPratingand be fitted by a qualified person Earth Connection Operation Ensure that the active secti...

Page 17: ...17 Immersion heater Electrical Diagrams Immersion heater wiring diagrams...

Page 18: ...ler part document 4 Vent primary system 5 Change pump speed or pump Symptom Possible Cause Action A Secondary water temperature not as setting on thermostat 1 Leakage in system 2 Pump faulty or inoper...

Page 19: ...19 Electrical Diagrams Wiring Diagrams for Open Vented Calorifiers...

Page 20: ...20 Electrical Diagrams...

Page 21: ...21 Notes...

Page 22: ...Conservation of Energy Protection of the Environment Hoval Limited Northgate Newark Notts NG24 1JN Telephone 01636 672711 Fax 01636 673532...