Geco GH11RA User manual
INSTRUCTION OF
CONTROLLER OPERATION
GH11RA
FOR CONTROLLING CENTRAL
HEATING BOILERS WITH
FEEDING SCREW
Program version: 1
USER INSTRUCTIONS
USER INSTRUCTIONS GH11RA STRONA 2
Wydanie I STYCZEŃ 2 1
TABELE OF CONTENTS
1. INTRODUCTION ............................................................................................................................ 3
1.1. G
RAPHIC SYMBOLS
................................................................................................................................ 3
1.2. K
EYBOARD AND
F
UNCTION
K
EYS
............................................................................................................. 3
1. GENERAL FEATURES ...................................................................................................................... 4
2. TECHNICAL DATA .......................................................................................................................... 4
3. ELECTRICAL SYSTEM AND CONNECTION GUIDELINES ..................................................................... 5
4. QUICK START ................................................................................................................................ 5
5. GH11RA OPERATION..................................................................................................................... 7
5.1. O
PERATED
H
EATING
S
YSTEM
.................................................................................................................. 7
5.2. A
UTOMATIC
O
PERATION
M
ODE
.............................................................................................................. 8
5.3. M
ANUAL
O
PERATION
M
ODE
.................................................................................................................. 9
5.4. V
IE ING
T
EMPERATURES
....................................................................................................................... 9
5.5. A
LARM
C
ONDITIONS
........................................................................................................................... 10
5.6. P
O ER
O
UTAGE
................................................................................................................................. 10
5.7. B
OILER
B
URNOUT
D
ETECTION
............................................................................................................... 10
5.8. M
AXIMUM
F
EEDER
T
EMPERATURE
D
ETECTION
....................................................................................... 11
6. USER SETTINGS ........................................................................................................................... 12
6.1. B
OILER
T
EMPERATURE
S
ETTING
(U0) .................................................................................................... 12
6.2. F
EEDER
O
PERATION
D
URATION
(U1) ..................................................................................................... 12
6.3. F
EEDER
S
TANDSTILL
D
URATION
(U2) ..................................................................................................... 12
6.4. S
USTAIN
P
ERIOD
(U3) ......................................................................................................................... 12
6.5. F
AN
S
PEED
(U4) ................................................................................................................................. 13
6.6. DH /R
ETURN
T
EMPERATURE
S
ETTING
(U5) ......................................................................................... 13
6.7. A
NTI
-L
EGIONELLA
F
UNCTION
(U6) ........................................................................................................ 13
7. OPERATING THE DHW BOILER ..................................................................................................... 14
7.1. I
NSTALLATION AND
C
ONNECTIONS
......................................................................................................... 14
7.2. C
ONFIGURATION OF
A
DDITIONAL
P
UMP
................................................................................................. 14
7.3. DH
P
RIORITY
.................................................................................................................................. 15
7.4. S
UMMER
M
ODE
................................................................................................................................. 15
. ROOM PANEL ............................................................................................................................. 15
9. TEMPERATURE LIMITER (STB) ..................................................................................................... 16
9.1. O
PERATION PRINCIPLE
......................................................................................................................... 16
9.2. STB
FUNCTION RESTART
(
MANUAL
) ....................................................................................................... 16
10. PROCEDURE IN THE CASE OF CONTROLLER DAMAGE .................................................................. 17
10. CONNECTING DEVICES TO THE GH11RA CONTROLLER ................................................................. 19
USER INSTRUCTIONS GH11RA STRONA 3
Wydanie I STYCZEŃ 2 1
1. 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
⇒
Reference
1.2. Keyboard and Function Keys
This symbol is used when it is necessary in described instructions to follow the
sequence of carried out operations. The unit may be damaged or destroyed in case of
any error or proceeding in discord with the description.
Important!
This symbol indicates information of particular importance.
This symbol indicates occurrence of additional information in a chapter.
ON/OFF
MANUAL CONTROL
AUTO-OPERATION
INDICATOR
MANUAL FAN ACTIVATION
/ INCREASE PARAMETER VALUE
AUTO
SUSTAIN OPERATION
INDICATOR
MANUAL FEEDER ACTIVATION
/ DECREASE PARAMETER VALUE
PROGRAMMING
USER INSTRUCTIONS GH11RA STRONA 4
Wydanie I STYCZEŃ 2 1
1. GENERAL FEATURES
The GH11RA Controller is a microprocessor-based device manufactured using the Surface Mount
Technology (SMT). It is designed to control the processes of Domestic Hot ater (DH ) heating and the
main Space Heating (SH) water circuit. Control parameters can be adjusted to the current operating
conditions and boiler type. The Controller includes a system protecting from power outages and other
different disturbances.
The GH11RA Controller is fitted with:
•inputs:
1. boiler output water temperature measurement (NTC sensor),
2. fuel feeder temperature measurement (NTC sensor),
3. DH boiler water temperature measurement (NTC sensor),
• digital input:
4. feeder cotter pins removal sensor – reed switch,
•input (RS485) for connection of the room control panel GA01HA manufactured by GECO.
It also contains four outputs allowing direct connection of 230 V AC devices, i.e.: fan, fuel feeder, SH
circulation pump, DH pump or mixing pump, depending on the type of the controlled heating system (⇒
section 5, page 3).
ALWAYS DISCONNECT THE CONTROLLER FROM POWER DURING
THUNDERSTORMS
2. TECHNICAL DATA
Power supply 230V
AC +10% -15%
NTC sensor resistance
characteristics
Operating temperature range +5°C to +40°C
Humidity 20% to 80% RH
Temperature
°C
Resistance
Ω
Fan protection 3.15A
0 7174.89
Sensor type NTC 2.2kΩ
10 4374.83
Sensor operating temperature
range 0°C÷100°C
20 2747.10
30 1774.91
40 1172.09
Output Maximum continuous
load
50 795.08
60 547.95
DH pump / mixing pump 1A 200
70 384.62
SH pump 1A 200
80
275.86
Fuel feeder 2A 400
90
202.37
Fan 1A 200 100 149.16
USER INSTRUCTIONS GH11RA STRONA 5
Wydanie I STYCZEŃ 2 1
3. ELECTRICAL SYSTEM AND CONNECTION GUIDELINES
1. The boiler room should be equipped with a 230V/50Hz electrical system, according to the
applicable regulations.
2. The electrical system (regardless of its type) should be terminated with a connection outlet fitted
with a protective terminal. Use of an outlet without a protective terminal causes electrical shock
hazard!!!
3. Connect the Controller to a separately installed power line protected with a properly selected
quick circuit-breaker or a residual-current device (RCD breaker). Do not connect any other devices
to this line!!!
REGULATOR ZASILANY JEST Z SIECI 23 V/5 HZ
JAKICHKOLWIEK NAPRAW MOŻNA DOKONAĆ TYLKO PRZY
ODŁĄCZONYM ZASILANIU NA BEZPIECZNIKU
4. QUICK START
To quickly start the GH11RA Controller, perform the following actions:
1. Connect the device to the 230V AC power system (put the plug in the power outlet).
⇒
2. Turn the Controller ON by pressing . Screen appears:
USER INSTRUCTIONS GH11RA STRONA 6
Wydanie I STYCZEŃ 2 1
3. Press . Screen appears:
and the Controller starts automatic operation according to the factory settings.
Table 1 Factory settings table
User
parameter Description Factory
setting
U0 Boiler temperature setting 60
0
C
U1 Feeder operation duration 15 s
U2 Feeder standstill duration 45 s
U3 Sustain period 15 min
U4 Fan speed 5
U5 DH /return set temperature 40
0
C
U6 Anti-Legionella function Yes
USER INSTRUCTIONS GH11RA STRONA 7
Wydanie I STYCZEŃ 2 1
5. GH11RA OPERATION
5.1. Operated Heating System
5.1.1. Central heating cycle + HU cycle
INPUTS OUTPUTS
T1 – Boiler temp. P1 – Fuel feeder
T2 – Feeder temp. P2 – Fan
T3 – HU temp. P3 – HU pump
C1 – Reed relay P4 – CH pump
5.1.2. Central heating cycle + mixing pump
INPUTS OUTPUTS
T1 – Boiler temp. P1 – Fuel feeder
T2 – Feeder temp. P2 – Fan
T8 – Return temp. P4 – CH pump
C1 – Reed relay P8 – mixing pump
USER INSTRUCTIONS GH11RA STRONA 8
Wydanie I STYCZEŃ 2 1
5.2. Automatic Operation Mode
By pressing , you can turn on the automatic operation mode – the Controller lights the upper
indicator on ( ).
5.1.3. Fuel Feeder
In the AUTO mode, the fuel feeder operates according to the values set in the user settings U1 –
“Feeder operation duration and U2 – “Feeder standstill duration . Activation and operation of the fuel
feeder is indicated by the lower indicator on .
5.1.4. SH Pump
In the AUTO mode, the SH 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 SH pump on and its operation is indicated by a vertical line at the left side of the
Controller main display screen.
The Controller turns off the pump when the water temperature drops to the activation
temperature minus 4°C. (If the SH pump start temperature is 40°C, then the SH pump stop temperature is
36°C).
5.1.5. Fan
In the AUTO mode, the fan runs continuously until the boiler temperature reaches the value set by
the user in the U0 setting. During that period the fan runs at its maximum speed. Activation and operation
of the fan is indicated by the upper indicator on .
5.1.6. SUSTAIN Operation Mode
The Controller gets into that mode when the boiler temperature reaches the value set by the user
in the U0 setting.
This mode of operation is indicated by lighting the lower indicator on ( ).
The fuel feeder and fan remain off in that mode for the period set by the user in the U3 setting. hen the
period ends, the Controller turns on the feeder and fan for the period set by the manufacturer in the F20
service setting.
The fan will operate for the period respectively longer that the feeder for the time set in the F1 service
setting in order to fire up the added coal.
The Controller will exit the SUSTAIN mode and return to the AUTO mode if the boiler temperature drops to
the value equal to the U0 – F05.
The SH pump operates identically as in the AUTO mode.
USER INSTRUCTIONS GH11RA STRONA 9
Wydanie I STYCZEŃ 2 1
5.3. Manual Operation Mode
In this mode, you can manually and independently turn on and off the fuel feeder and the fan. To do
this, follow the below scheme:
In the manual operation mode, you can also start the SH and DH pumps. To start the SH pump,
press the following keys simultaneously: + . Starting and running of the SH pump is
indicated by a vertical line at the left side of the Controller main display screen.
To start the DH pump, press the following keys simultaneously: + . Starting and
running of the DH pump is indicated by a horizontal line at the bottom of the Controller main
display screen.
Pressing causes the Controller to switch from automatic to manual mode, and immediately stops the
fan and the feeder.
5.4. Viewing Temperatures
After pressing , the display shows water temperature at the boiler outlet. Viewing
temperatures: DH /return and feeder is available in the AUTO and SUSTAIN modes, but only if the
DH /return sensor or feeder are properly enabled.
Press to view the feeder temperature. Press the key again to cancel the view. The view is also
cancelled after 10s from pressing of the key.
Press to get a DH /return temperature view. Press the key again to cancel the view. The view is also
cancelled after 10s from pressing of the key.
STEP 1
STEP 2
→
Controller
indicates water
temperature
measured on SH
boiler
Fuel feeder
Lower key indicator
lights. Press the key again to
stop feeder and turn off
indicator.
Fan
Upper key indicator
lights. Press the key again to
stop the fan and turn off
indicator.
USER INSTRUCTIONS GH11RA STRONA 10
Wydanie I STYCZEŃ 2 1
5.5. Alarm Conditions
The Controller uses 8 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
. This does not include the AL12 alarm condition.
Alarm conditions:
• AL1 →
STB activated or fuse blown
• AL2 →
Boiler water outlet temperature sensor failure
• AL3 →
Feeder temperature sensor failure
• AL4 →
DH /return temperature sensor failure
• AL9 →
No feeder rotation / reed switch failure
• AL11 →
Maximum feeder temperature exceeded
• AL12 →
Boiler overheating
• AL13 →
Boiler burnout
5.6. Power Outage
After a power outage the Controller starts to reactivate according to the condition it was in before the
power down. The Controller waits 1 minute to stabilise the mains power parameters, and then restores
operation with the previously programmed settings.
During the waiting period, the display shows time in seconds remaining until the end of the period,
along with indication of its condition before the power outage:
•blinking “A” for AUTO mode,
•blinking “P” for SUSTAIN mode,
•blinking “r” for MANUAL mode.
Respective indicators (AUTO or SUSTAIN ) are blinking along with the letters.
5.7. Boiler Burnout Detection
5.1.7. No Fuel
If during automatic operation the boiler outlet water temperature remains below the F08 setting
for a period of time set in the F09 setting, then the Controller considers the boiler as “burned out” and
enters the AL13 alarm condition.
5.1.8. Sudden Drop of Outlet ater 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 DH pumps are switched off, and
the Controller goes into the burnout detection mode.
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