geminox MERITE ZEM 2-17 C Owner's manual

Technical instructions
Gas condensing boiler
MERITE
ZEM 2-17 C | ZEM 5-25 C
ZEM 5-25 SEP
6 720 813 321 (2016/06)

- 2 -
CONTENT
I-SAFETY PRECAUTIONS ...................................................................................................................... 5
1-SYMBOLS.............................................................................................................................................. 5
2-SAFETY PRECAUTIONS...................................................................................................................... 5
2.1 - Smell of gas ............................................................................................................................... 5
2.2 - Smell of flue gas ........................................................................................................................ 5
2.3 - Explosive or inflammable materials ........................................................................................... 5
2.4 - Fitting, commissioning ............................................................................................................... 5
2.5 - Servicing .................................................................................................................................... 5
2.6 - Combustion air/Ambient air ....................................................................................................... 5
2.7 - User information from the installer ............................................................................................. 5
II - PRESENTATION ................................................................................................................................... 7
1-DESCRIPTION ...................................................................................................................................... 7
2-RANGE.................................................................................................................................................. 7
III - TECHNICAL SPECIFICATIONS ........................................................................................................... 8
1-CHARACTERISTICS............................................................................................................................. 8
2-CONTRIBUTION OF THE TEMPERATURE CONTROL TO SEASONAL SPACE
HEATING EFFICIENCY......................................................................................................................... 9
3-PIPE CONNECTION DIAMETERS........................................................................................................ 9
4-DIMENSIONS...................................................................................................................................... 10
4.1 - ZEM 2-17 C / ZEM 5-25 C ....................................................................................................... 10
4.2 - ZEM 5-25 SEP ......................................................................................................................... 10
5-LIST OF COMPONENTS..................................................................................................................... 11
5.1 - ZEM 2-17C / ZEM 5-25 C ........................................................................................................ 11
5.2 - ZEM 5-25 SEP ......................................................................................................................... 12
6-CIRCULATING PUMP CHARACTERISTICS...................................................................................... 13
6.1 - For models ZEM 5-25 SEP ...................................................................................................... 14
7-AVAILABLE PRESSURES .................................................................................................................. 14
8-EXPANSION VESSEL CHARACTERISTICS...................................................................................... 15
9-DOMESTIC HOT WATER EFFICIENCY............................................................................................. 15
IV - OPERATION ........................................................................................................................................ 16
1-GENERAL OPERATING PRINCIPLE.................................................................................................. 16
1.1 - Air pressure variation procedure ............................................................................................. 16
1.2 - Emission of pollutants .............................................................................................................. 16
2-FUNCTIONS COMMON TO THE DIFFERENT VERSIONS............................................................... 16
2.1 - Anti-freeze function .................................................................................................................. 16
2.2 - Anti-legionnella function (except for ZEM SEP) ...................................................................... 16
2.3 - Pump kick or selector valve kick .............................................................................................. 16
2.4 - Monitoring of flue gas temperature .......................................................................................... 16
2.5 - Safety test and regulator shutdown function ........................................................................... 17
2.6 - “INFO” function: displaying parameters on the boiler display .................................................. 18
V-INSTALLATION ................................................................................................................................... 19
1-GENERAL............................................................................................................................................ 19
2-VENTILATION ..................................................................................................................................... 20
2.1 - Merite models with conventional flue connection .................................................................... 20
2.2 - Merite models with balanced flue connection .......................................................................... 20

- 3 -
CONTENT
3-POSITION OF THE BOILER ............................................................................................................... 21
3.1 - Rear wall spacer / fitting dimensions ....................................................................................... 21
4-DISASSEMBLING THE COVER.......................................................................................................... 21
5-COMBUSTION PRODUCT FLUEING................................................................................................. 22
5.1 - The boiler flue tube positioning ................................................................................................ 22
5.2 - Evacuation by chimney flue (B23/C93) ................................................................................... 23
5.3 - Adaptor C93 ............................................................................................................................ 23
5.4 - Balanced flue outlet (C13/C33) ............................................................................................... 26
6-HYDRAULIC CONNECTION............................................................................................................... 32
6.1 - Distributor recommendations ................................................................................................... 32
6.2 - Accessories to connect, install or adjust .................................................................................. 32
6.3 - Hydraulic connection for models ZEM 2-17 C and ZEM 5-25 C .............................................. 33
6.4 - Hydraulic connection for models ZEM C + DHW production system of type BS
with internal selector valve kit .................................................................................................. 34
6.5 - Hydraulic connection for models ZEM C + DHW production system of type BS
with external selector valve kit ................................................................................................. 34
6.6 - Hydraulic connection for models ZEM 5-25 SEP .................................................................... 35
7-GAS CONNECTION............................................................................................................................ 35
8-ELECTRICAL CONNECTION.............................................................................................................. 36
8.1 - Mains connection ..................................................................................................................... 36
8.2 - Connection of the sensors to the LMU management unit ....................................................... 36
8.3 - REG 60/REG 151 room thermostat (option) ............................................................................ 37
8.4 - Wiring diagram ........................................................................................................................ 38
VI - PARAMETERS .................................................................................................................................... 39
1-PARAMETER LIST.............................................................................................................................. 39
1.1 - Parameters available for possible adjustment ......................................................................... 39
1.2 - Read only available parameters (Service data) ....................................................................... 39
2-ACCESS THE SETTINGS VIA THE QAA 73 ROOM SENSOR.......................................................... 40
2.1 - Access the lines 501 to 755 ..................................................................................................... 40
VII - COMMISSIONING ............................................................................................................................... 42
1-PROTECTION OF THE INSTALLATION............................................................................................. 42
1.1 - Bionibal .................................................................................................................................... 42
1.2 - Bionibagel ................................................................................................................................ 42
1.3 - Products equivalent to Bionibal or Bionibagel ......................................................................... 42
2-FILLING THE INSTALLATION WITH WATER .................................................................................... 43
3-GAS SUPPLY...................................................................................................................................... 43
4-SETTING THE DOMESTIC HOT WATER FLOW RATE..................................................................... 43
4.1 - ZEM 5-25 SEP ......................................................................................................................... 43
5-SETTING THE MAXIMUM POWER IN HEATING MODE................................................................... 44
6-VERIFICATIONS PRIOR TO COMMISSIONING................................................................................ 44
7-USER INFORMATION......................................................................................................................... 44
8-COMMISSIONING............................................................................................................................... 45
8.1 - Boiler with outside sensor only ................................................................................................45
8.2 - Boiler with room sensor and outside sensor ............................................................................ 45
8.3 - Faults during operation ............................................................................................................ 46
9-COMBUSTION PRODUCT CHECKING.............................................................................................. 46
10 - ASSEMBLING THE COVER................................................................................................................ 46

- 4 -
CONTENT
VIII - GAS CONVERSION ............................................................................................................................ 47
1-GAS CHANGE..................................................................................................................................... 47
1.1 - Conversion from natural gas to propane (option) .................................................................... 47
2-GAS/CO2/CO/NOX FLOW CONTROL AND SERVICE PRESSURE CONTROL............................... 48
2.1 - Surveillance procedure ............................................................................................................ 49
2.2 - Setting table ............................................................................................................................. 50
IX - MAINTENANCE .................................................................................................................................. 51
1-SERVICING THE FAN AND THE BURNER........................................................................................ 51
2-SERVICING THE HEAT EXCHANGER OF THE BOILER SHELL...................................................... 53
3-SERVICING THE PLATE EXCHANGER............................................................................................. 53
4-CHECKING ACCESSORIES............................................................................................................... 53
5-EXPANSION VESSEL PRE-INFLATION PRESSURE CHECK.......................................................... 54
6-FLAME SETTING ................................................................................................................................ 54
7-COMBUSTION PRODUCT CONDUITS.............................................................................................. 54
8-DRAINING ........................................................................................................................................... 55
9-SENSOR RESISTANCES ................................................................................................................... 55
X-OPERATING FAULTS ........................................................................................................................ 56
1-OPERATING FAULTS LIST (BOILER)................................................................................................ 56
2-OPERATING FAULTS LIST FOR PUMP ............................................................................................ 57
XI - OPTIONS ............................................................................................................................................. 58
1-REGULATION OF ROOM TEMPERATURE....................................................................................... 58
1.1 - Room thermostat (REG 60) ..................................................................................................... 58
1.2 - Room thermostat (REG 151) ................................................................................................... 58
1.3 - QAA 53 room sensor ............................................................................................................... 58
1.4 - QAA 73 room thermostat .........................................................................................................58
2-SELECTOR VALVE KIT FOR CONNECTING ZEM..C/BS.................................................................. 59
3-EXTERNAL SELECTOR VALVE KIT FOR CONNECTING ZEM..C/BS.............................................. 59
4-UNDERFLOOR HEATING SAFETY THERMOSTAT.......................................................................... 59
5-BS TYPE DOMESTIC HOT WATER PRODUCTION SYSTEM.......................................................... 60
6-BIONIBAL/BIONIBAGEL...................................................................................................................... 60
7-CONDENSATE LIFT PUMP................................................................................................................ 60
XII - WARRANTY ........................................................................................................................................ 61

- 5 -
I - SAFETY PRECAUTIONS
1- SYMBOLS
In this document:
!
Safety recommendations, warnings
and recommendations are by a warning- triangle symbol accompanied by bold text.
2 - SAFETY PRECAUTIONS
2.1 - Smell of gas
- Turn off the gas service cock.
- Open doors and windows.
- Do not operate any electrical switches or other
elementsthat causesparks(telephone,door-bell,
etc.).
- Extinguish all nearby naked flames. - Do not
smoke.
- Do not use a lighter.
- Immediately contact your installer or your after-
sales service from outside the building and warn
the neighbours.
2.2 - Smell of flue gas
- Switch off the appliance.
- Open doors and windows.
- Immediately contact your installer or your after-
sales service.
2.3 - Explosive or inflammable materials
- Do not store or use any inflammables materials
(paper, thinners, paints, etc.) within vicinity of the
appliance.
- Respect the minimum distances regard to inflam-
mable materials and fire-proof materials.
2.4 - Fitting, commissioning
- The installation, work on the flues, electrical
connection and the first start-up must be carried
out by a qualified professional and authorised in
accordance with the applicable regulations and
rules of good practice.
Respect the electrical connection plan! (§ 8 -
page 36)
- Before installation: make sure the appliance is
turned-off at all points. Secure against involuntary
re-triggering.
- The appliance must not operate without water.
- Carry out the checks listed in§ 6 - page 44 before
the first start-up of the system.
- Flue system (air inlets, conduits, etc.) must not be
modified in any way (§ 5 - page 22).
- B23 Chimney type system:
• Ventilation openings in doors, windows and
walls must not be sealed or restricted.
Intoxication Risk: An insufficient air intake
can cause the evacuation of dangerous
smokes.
• If draught-proof windows are installed, mea-
sures must be taken to ensure there is an ade-
quate supply of air to the appliance for
combustion.
- Flue type system:
• The flue type system (sealed) can be installed
in premises with or without a window or venti-
lation.
2.5 - Servicing
- Recommendations for the user:
• take out an inspection/maintenance contract
with an competent and qualified engineer.
• have the appliance serviced at regular inter-
vals (annually).
• ensure that the installation verification has
been issued with a certificate of conformity
granted by an approved organisation.
- Respect the safety recommendations of
chapitre IX - MAINTENANCE - page 51.
- Only use original spare parts.
2.6 - Combustion air/Ambient air
- To avoid any corrosion, the combustion/ambient
air must be free of corrosive substances (e.g.
halogenated hydrocarbons containing chlorines
or fluorines compounds).
- Do not install the appliance in a polluted atmos-
phere.
2.7 - User information from the installer
- Inform the user onthe operating modes ofthe ap-
pliance and show him how to use the controls.
- Inform the user that he must never undertake any
modifications or repairs of the appliance.
- Inform the user of the various possible operating
faults and dangers.
- Give the user instructions to the user.