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INSTRUCTION OF
CONTROLLER
OPERATION
GH11NB
FOR CONTROLLING CENTRAL
HEATING BOILERS WITH
AIR BLOW
Program version
01
USER MANUAL
We request that users carefully study applicable Instructions before connecting and
starting up any of our products. Should any doubts arise, please contact our Company between
8 a.m. and 4 p.m.
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Table of Contents
Related Manuals for Geco GH11NB
Summary of Contents for Geco GH11NB
- Page 1 INSTRUCTION OF CONTROLLER OPERATION GH11NB FOR CONTROLLING CENTRAL HEATING BOILERS WITH AIR BLOW Program version USER MANUAL We request that users carefully study applicable Instructions before connecting and starting up any of our products. Should any doubts arise, please contact our Company between...
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Page 2: Table Of Contents
) ....................18 FUNCTION RESTART MANUAL PROCEDURE IN THE CASE OF CONTROLLER DAMAGE ..............19 CONNECTION DEVICES TO THE GH11NB CONTROLLER ..............22 INFORMATION ON LABELLING AND COLLECTION OF WORN OUT ELECTRICAL AND ELECTRONIC EQUIPMENT ............................23 NOTES ............................23... -
Page 3: Introduction
SERVICE MANUAL GH11NB INTRODUCTION 1.1. Graphic symbols Symbols intended to indicate and at the same time emphasise the importance of text containing information that warns against dangerous situation have the following graphic forms: Warning This symbol is used when it is necessary in described instructions to follow the sequence of carried out operations. -
Page 4: Keyboard And Function Keys
INDICATORS CHANGE GENERAL FEATURES The GH11NB Controller is a microprocessor-based device manufactured using the Surface Mount Technology (SMT). It is designed to control the processes of Hot Utility Water (HUW) heating and the main Central Heating (CH) water circuit. Control parameters can be adjusted to the current operating conditions and boiler type. -
Page 5: Technical Data
SERVICE MANUAL GH11NB It also contains four outputs allowing direct connection of 230 V AC devices: fan, CH circulation pump, HUW pump or mixing pump, depending on the type of the controlled heating system ( section 6.1.1 p.6). ALWAYS DISCONNECT THE CONTROLLER... -
Page 6: Electrical System And Connection Rules
ANY REPAIRS MAY BE CARRIED OUT ONLY WITH POWER SUPPLY CUT OFF AT THE FUSE QUICK START To quickly start the GH11NB Controller, perform the following actions: 1. Connect the device to the 230V AC power system (put the plug in the power outlet). ... -
Page 7: The Gh11Nb Operation
SERVICE MANUAL GH11NB 3. Press . Screen appears: and the Controller starts automatic operation according to the factory settings. Tabele 1 Factory settings chart User Factory Description parameter setting Boiler preset temperature Fan speed HUW/return set temperature Anty-Legionella , 1-Yes, 0-No THE GH11NB OPERATION 6.1. -
Page 8: Automatic Operation Mode
SERVICE MANUAL GH11NB 6.1.2. Central Heating cycle + mixing pump INPUTS OUTPUTS T1 – Boiler temp. P1 – Mixing pump T2 – Return temp. P2 – CH pump T3 – Flue gas P3 – Fan temp. 6.2. Automatic operation mode. - Page 9 SERVICE MANUAL GH11NB 6.2.2. CH Pump In the AUTO mode, the CH pump starts when the temperature of the boiler water is higher or equal to the value set in the F06 service setting (factory setting is 40°C). Turning the CH pump on and its operation is indicated by lighting the upper indicator on The Controller turns off the pump when the water temperature drops to the activation temperature minus 4°C.
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Page 10: Manual Operation Mode
SERVICE MANUAL GH11NB 6.3. Manual operation mode Pressing causes the Controller to switch from automatic to manual mode, and immediately deactivates the fan, and the pump. In this mode, you can manually and independently activate and deactivate the HUW pump and the CH pump. -
Page 11: Alarm Conditions
SERVICE MANUAL GH11NB 6.5. Alarm Conditions The Controller uses 6 different alarm conditions. In each alarm condition, the Controller displays the alarm number and activates the alarm sound output. In case of several alarm conditions occurring simultaneously, their numbers are displayed in sequence. You can exit an alarm condition only by pressing . -
Page 12: User Settings
SERVICE MANUAL GH11NB 6.7.2. Sudden Drop of Outlet Water Temperature If during automatic operation the boiler outlet water temperature drops by 10°C, and during that dropping period the temperature does not rise by 4°C, then the SH and DHW pumps are switched off, and the Controller goes into the burnout detection mode. -
Page 13: Fan Speed (U1)
7.1. 7.4. Anti-Legionella Function (u3) The GH11NB controller is equipment in Anti-Legionella function which limit growth Legionella pneumophilia bacterium on HUW installation. This function is available for users when value F00 service parameter was adjust on „02”, „03” or „04”. -
Page 14: Operating The Huw Boiler
EXTRA CAUSION WHEN USING HUW. MAY RESULT IN BURNING !!! OPERATING THE HUW BOILER The GH11NB Controller allows connection of an additional pump to control the Hot Utility Water (HUW) in the boiler. 8.1. Instalation and Connections To use the Hot Utility Water (HUW) heating option, perform the following actions: connect the boiler according to the enclosed diagram (... -
Page 15: Configuration Of Additional Pump
8.4. Summer Mode The GH11NB Controller is equipped with a SUMMER MODE option that allows you to turn off the CH pump for the summer season, and the boiler operates only to supply the HUW water. To do this, set the F00 service setting to the value of “4”. -
Page 16: Standard Thermostat
SERVICE MANUAL GH11NB 8.5. Standard thermostat The GH11NB controller can cooperate with external room thermostat ( Fig.1), which can put coal boiler in blockade position when temperature is reach in room. During blockade position C.H. pump stay off after 4 minutes, for the moment when temperature in room is Reach (short circuit contact). - Page 17 SERVICE MANUAL GH11NB If the GA01HA room panel is correctly connected to the GH11NB controller, it will be automatically detected by the controller. Then, user is not required to carry out any additional operations or make any settings. In this case, the controller will work according to the room panel settings.
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Page 18: Temperature Limiter (Stb)
SERVICE MANUAL GH11NB 10. TEMPERATURE LIMITER (STB) The GH11NB controller is provided with an extra mechanical protection, independent of automatic systems. It is called safety temperature limiter (STB). 10.1. Operation principle In case heating water reaches the temperature of 95... -
Page 19: Procedure In The Case Of Controller Damage
In a case if have been noticed any irregularities in functioning of controller, user should contact with the supplier / producer or GECO company. Professional technical assistance will be given to him. If service assistance is indispensable (repair of the controller), damaged controller should be dismounted from the boiler and sent as a set (together with casing) on indicated address. - Page 20 SERVICE MANUAL GH11NB PREPARING THE CONTROLLER TO DELIVERY TO THE SERVICE STEP 1 Disconnect a controller from power supply (remove plug from power point) STEP 2 Remove a front panel by using of flat screwdriver STEP 3 Remove a top part of casing...
- Page 21 SERVICE MANUAL GH11NB STEP 4 Remove connectors (with connected wires) from plugs, unscrew ground wires from PE strip, loosen strip which is tightening wires and take all wires out of the controller STEP 5 Dismount a controller from boiler by unscrewing...
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Page 22: Connection Devices To The Gh11Nb Controller
H.U.W. Pump/ Mixing Pump — GND () — H.U.W. Pump/ Mixing Pump — +12V AC — Power Supply 230V — Power Supply 230V Rys. 1 Diagram of connection outputs and inputs devices and temperature sensor in the GH11NB controller. August 2014... -
Page 23: Equipment
SERVICE MANUAL GH11NB ANY ADDITIONAL EQUIPMENT MAY BE CONNECTED TO THE GH11NB CONTROLLER ONLY BY PERSON LICENSED TO PERFORM ELECTRICAL INSTALLATION WORKS. 13. INFORMATION ON LABELLING AND COLLECTION OF WORN OUT ELECTRICAL AND ELECTRONIC EQUIPMENT CAUTION! This symbol placed on the product or its packaging indicates the need for selective collection of worn out electrical and electronic equipment. - Page 24 P.P.U.H. „Geco” Sp. z o. o. Cholerzyn 376, 32-060 Liszki tel. 012 6369811, 6361290 fax. 012 6362002 http://www.geco.pl e-mail: geco@geco.pl...
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