Flexiheat THERMO-Combi 15 User Instructions Download Page 1

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We reserve the right of changing these instructions without special prior notification

TMS-UT-0709-Z07-8

ELECTRIC BOILER FOR CENTRAL HEATING

AND WARM WATER PREPARATION

USER’S INSTRUCTIONS

THERMO-COMBI

Summary of Contents for THERMO-Combi 15

Page 1: ...We reserve the right of changing these instructions without special prior notification TMS UT 0709 Z07 8 ELECTRIC BOILER FOR CENTRAL HEATING AND WARM WATER PREPARATION USER S INSTRUCTIONS THERMO COMBI ...

Page 2: ...We reserve the right of changing these instructions without special prior notification ...

Page 3: ...ower before opening or any work on the boiler The boiler has a built in protection against frost damage If the boiler in winter period does not use mandatory should be left active main power boiler can be turned off on the control panel so that the protection was active Table of contents Safety information and warnings 3 1 Introduction 1 2 About the product 1 2 1 Construction 1 3 3 1 Important war...

Page 4: ... of the product before assembly and connection read thoroughly these instructions Packing contains the following elements boiler 1 suspension support 3 user s instructions and letter of guarantee 3 valve for filling and emptying 4 impurities collector 5 plastic pipe for venting the system The Thermo Combi boilers meet any and all national regulations and legal standards Pursuant to the mentioned b...

Page 5: ... venting valve 14 Filling and emptying valve in packing it should be built in at installation 15 Valve for boiler venting 16 Sounding tube for air appearance control 17 Distributor 18 Miniature circuit breaker MCB 19 Temperature sensor of sanitary water outlet line 20 Exchanger 21 Temperature sensor of sanitary water inlet line 22 Non return valve 23 Pump for sanitary water preparation 24 Sanitary...

Page 6: ...ED TO BUILD IN A MAGNETIC OR ELECTROMAGNETIC LIME BREAKER ON THE INLET LINE OF SANITARY WATER ON THE BOILER 3 2 Assembly Minimum distances at assembly Disassembly schema THERMO Combi is foreseen for the wall assembly and for the easier assembly on the backside there is foreseen the suspension support For the suspension you may use metal wall plugs with the screw M8 or M10 or stronger plastic wall ...

Page 7: ...ng the water circle Thermo Combi 15 24kW On the illustration you can see ground terminal 1 neutral wire terminal 2 operating current trips 3 MCB miniature circuit breaker 4 cartridge fuse 6 3A T for control power 5 cartridge fuse 6 3A T for safety thermostat STB 6 and PCB with power relays and connectors for pumps room stat and all probes RelBoard 7 Thermo Combi 28 40kW On the illustration you can...

Page 8: ...ction MCB must be incorporated in fixing wiring in accordance with the local wiring rules This device must be earthed Power connection main power terminals Type A Type B Connection way to the main power terminal may be vary depending on elements installed inside the boiler Note The power cable of the intersection from Ø6 mm to Ø21 mm must be connected with the bottom of the boiler with the help of...

Page 9: ...te 2 power connection protection cover 1 must be removed by unwinding two M4 screws and pulling protection cover out After connecting the power cable protective cover 1 must be put in place and tightened 2 1 Accessing connection plate 15 24kW Accessing connection plate 28 40kW 3 4 2 Connecting sensors or room thermostat on connection plate Temperature sensors Connection plate 28 40kW Room thermost...

Page 10: ...ressing the push button 5 the central heating system is switched on Upon pressing on the desired water temperature in boiler is displayed for 5 seconds signalization of central heating operation 3 is twinkling After 5 seconds the real temperature in the boiler is displayed 1 if the current temperature in the boiler meets the desired one the signalization lamp of the operation mode 3 is switched of...

Page 11: ...ration 8 does not twinkle in order for the boiler to memorize new temperature 4 1 1 Central heating functions Display of desired temperature in the boiler If the key 4 is held pressed less than 5 s the LED display will show the desired temperature in the boiler The value is displayed for 5 seconds after which the display normally shows the real temperature of water in the boiler Setting the desire...

Page 12: ...water storage By pressing the key 6 user can enter the domestic water temperature menu The desired water temperature in domestic water storage is blinking By pressing the key 6 the value of desired domestic water temperature in domestic water storage is changing in steps of 1 C If the key is held pressed less than 5 s the value from the display becomes the desired domestic water temperature Possib...

Page 13: ...n pump operation for domestic water conditioning is blinking By pressing the key the time is changing from 0 1 min up to 19 min In increment of 0 1 If the key is depressed for more than 5s value on the display will be memorized and becomes active Factory default 1 min Setting standby boiler temperature By pressing the key 6 user can setup stand by boiler temperature Display will show current stand...

Page 14: ...ting the central heating pump delay By pressing key 4 user can change pump delay time between 0 15 min Factory settings is 2 Selecting the time delay between steps for power regulation By pressing the key 4 user can change the time delay between steps for power regulation in the range from 5 to 60 seconds Default value depends on the number of stages for power regulation each stage will add 5 seco...

Page 15: ...nually started Circulation pumps lubricate bearings with water flowing through the pump and after stoppage it could occur that the bearings burn Starting the pump only for IMP GHN pumps For starting the pump it is necessary to turn off the protection plug on its front side 1 below which there is the axis with the groove for screwdriver With the screwdriver the pump 2 should be several times turned...

Page 16: ...ot twinkle in order that the boiler memorizes a new temperature Use of sanitary water If there is a need for sanitary water the signalization lamp of sanitary water preparation turns on 8 and the temperature of warm water outlet displays Signalization of operation degree of heaters 2 displays and by turning on lamps it is shown whether one group of heaters is in operation two or all three groups T...

Page 17: ...e SP the boiler automatically switches off in order to protect electronics and contactors inside the boiler The boiler shall automatically continue the operation when the network voltage reaches values above 185V Overheating OH 1 If temperature inside the boiler reaches 110 C and thermal fuse 10 switch off boiler stops the operation until thermal fuse is reset The display will signal overheating p...

Page 18: ...e once a year by the authorized service before heating season This service is not included in the guarantee During the inspection all electric and water connections should be tightened the system should be vented and if necessary filled up valves and general functionality of the device should be checked If you notice a reduced effect of warm water it is necessary to remove lime accumulated within ...

Page 19: ... in operation air blockage on central heating installation that prevents the circulation start the mechanical pump or replace it with the new one if it is blown see 4 1 vent the installation the boiler heats poorly on the feed one phase is missing in two phase thermostats second phase is not in operation second or third phase was not manually turned on one contactor defective a part of the heater ...

Page 20: ... pre reset safety thermostat and then the MCB switch contact authorized service personnel to resolve the exact source of the problem sanitary water temperature is varying too low pressure or too small flow in plumbing installation set the warm water temperature to the desired temperature without mixing with cold water boiler does not reach a desired warm water temperature check network fuses warm ...

Page 21: ...aracteristics Central heating heat effect kW 15 18 24 28 32 40 Max pump supply at 1000 lit h m 4 8 Area of central heating temperature adjustment oC 40 90 Area of warm water temperature adjustment oC 30 55 Warm water flow at 2 bar l min 6 1 6 8 8 5 9 3 10 2 11 50 Warm water flow at 2 bar and 55oC l min 2 85 3 10 4 00 4 62 5 10 5 8 Specific flow at ΔT 30 K l min 10 2 11 2 12 80 13 30 13 96 15 6 Per...

Page 22: ...ominal current Fuse current Rated short circuit breaking capacity Icn EN 60898 Rated short circuit breaking capacity Icn IEC 947 2 Min conductor s cross section Fuse type RCCB switch type 400V 3N 50 60 Hz 10 kA 15 kA 5 x 6 mm2 B25 3p 5 x 10 mm2 B50 3p 63 A B63 3p 40 kW 57 97 A 15 kW 21 73 A 25 A 18 kW 26 09 A 32 A B32 3p 40 0 03 A 24 kW 34 78 A 40 A B40 3p 28 kW 40 58 A 50 A 32 kW 46 38 A 63 0 03 ...

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