DeDietrich B control panel User manual
B Control panel
Package MA1 [Basic] English
03/14/08
94862242
Instructions for use, Electrical connection, Start up
Please Read & Safe This Manual for Future Reference
2
CONTENTS
1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. PRESENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. TECHNICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5. ASSEMBLY, ELECTRICAL CONNECTIONS AND FITTER SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6. USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7. MESSAGES - ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8. SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CONFORMITY/ MARKING
This product complies with the requirements of the follo-
wing European directives and standards:
- 73/23/EEC, Low Voltage Directive
Relevant standard: EN 60.335.1.
- 89.336/EEC, Electromagnetic Compatibility Directive
Generic standards: EN 61000-6-3 and EN 61000-6-1
3
The boiler must be connected by a qualified
professional. Strict compliance with these
usage, electrical connection and start up
instructions is a precondition for the correct
operation of the boiler.
The B control panel is used on the following
De Dietrich boilers:
- GT 120 A and GT 1200 A.
2. GENERAL
Electrical heating control panel, equipped with regula-
tion with priority for domestic hot water production as
original equipment.
The basic delivery for the B control panel compri-
ses:
- 1 B control panel
- 1 boiler sensor to measure the water temperature in
the boiler.
Options
The following options can be connected:
- DHW sensor (package FM 45) for the connection of a
domestic hot water calorifier,
- remote room thermostat.
3. PRESENTATION
4.TECHNICAL CHARACTERISTICS
The B control panel includes a boiler thermostat, a
domestic hot water thermostat, an electronic thermo-
meter and a safety thermostat.
The boiler thermostat
to regulate the boiler operating temperature.
The safety thermostat
with manual reset to make the boiler safe in operation.
If the boiler temperature rises abnormally
(110°C/230°F), the safety thermostat cuts off the
burner electricity power supply.
In this case, you must call your fitter.
The domestic hot water thermostat
for the preparation of domestic hot water (GT 120 A
connected to a calorifier and GT 1200 A), is used to
adjust the average domestic hot water storage tempe-
rature giving priority to preparation of domestic hot
water.
The domestic hot water priority trips the burner and
the DHW load pump and stops the heating pump
whenever a domestic hot water heating request is
received. During summer conditions, the boiler tempe-
rature is not maintained between two hot water
requests. The domestic hot water temperature is
measured by the DHW sensor.
Electrical power supply: 120V - 60 Hz
1. INTRODUCTION
- Value of water sensors (boiler and domestic hot water)
Temperature Resistance
in °C / °F in Ohm
0°C / 32°F 32 014 Ω
10°C / 50°F 19 691 Ω
20°C / 68°F 12 474 Ω
30°C / 86°F 8 080 Ω
40°C / 104°F 5 372 Ω
Temperature Resistance
in °C / °F in Ohm
50°C / 122°F 3 661 Ω
60°C / 140°F 2 535 Ω
70°C / 158°F 1 794 Ω
80°C / 176°F 1 290 Ω
90°C / 194°F 941 Ω
4
•Assembling the control panel
Refer to the assembly sheet provided with the
instructions for the boiler.
•Installing the boiler sensor
Refer to the assembly sheet provided with the
instructions for the boiler.
Electrical connections shall be carried out
by a qualified professional only.
The electrical wiring has been carefully
checked in the factory and the internal
connections of the control panel must not
be modified in any event.
Electrical connections shall be made respecting the
information given on the electrical diagrams delivered
with the equipment and the directives given in the
instructions.
The electrical connection must comply with applicable
standards and regulations in force. The equipment
must be powered by a circuit with an omni-pole switch
with an opening distance greater than 3 mm.
Electrical connections
8575N066A
GT 120 A, GT 1200 A
All connections are made on the terminal blocks
provided for this purpose at the back of the boiler
control panel.
The connecting cables may be brought inside the boi-
ler through the cut-outs provided in the boiler back
panel, which may be used along with purchased cable
channels.
Fasten the cables to the rear plate of the control panel by
means of the cable clamps (cable clamps supplied in a
separate pack) after mounting them on the plate.
IMPORTANT: The maximum current that can be
switched per output is 2 A cos. ϕ =
0,7
(= 450 W inrush
current less than 16 A).
Sensor cables must be separated from
cables in 120V circuits.
- In the boiler: use two cable glands on each side of
the boiler for this purpose.
- Outside the boiler: use two cable channels or
cableways with a minimum distance of 10 cm
between them.
Sensor
connection
side
120V connec-
tion side
5. ASSEMBLY, ELECTRICAL CONNECTIONS AND FITTER SETTINGS
8575N066
5
Basic connections
MAIN SUPPLY 120V 60Hz
ALI
LN 12345
CS
SAFETY CONTACT
ALARM INDICATOR
VA
67 LN
HEATING PUMP
(A)
LN 8910
LOAD PUMP
LN 111213
BOILER
S CH
17 16
o o
DOMESTIC HOT WATER
S ECS
19 18
o o
ROOM THERMOSTAT
TAM
15 14
SENSOR
3x1,5 mm2 mini.
3x0,75 mm2 mini.
8578N004
3x0,75 mm2 mini.
120V - 60Hz
Sensor cables must be separated from
cables in 120V circuits (see page 4).
GT 120 A
GT 1200 A
GT 1200 A
D.H.W.
sensor Load
pump
Heating
pump 120 V power
supply
Boiler
sensor
Minimum wire gauge
0.75mm2 = 18 AWG
1.5mm2 = 14 AWG
6
2x0,75 mm2mini.
2x0,75 mm2mini.
2x0,75 mm2mini.
MAIN SUPPLY 120V 60Hz
ALI
LN 12345
CS
SAFETY CONTACT
ALARM INDICATOR
VA
67 LN
HEATING PUMP
(A)
LN 8910
LOAD PUMP
LN 111213
BOILER
S CH
17 16
o o
DOMESTIC HOT WATER
S ECS
19 18
o o
ROOM THERMOSTAT
TAM
15 14
SENSOR
8578N005
120V - 60Hz
GT 120 A
GT 1200 A
Removable
bridge Removable
bridge
Room
thermostat Safety
contact Alarm light
Sensor cables
must be separated
from cables in
120V circuits (see
page 4).
Minimum wire gauge
0.75mm2 = 18 AWG
1.5mm2 = 14 AWG
Control Connections & Options
Room thermostat connection:
The room thermostat is a 120v signal, use a class 2 step down transformer when connecting to a conventional
thermostat.
Contact Safety
120 v signal to dry contact - vent safety switch as required by code, other auxiliary limits may be wired in series.
7
"FITTER" SETTINGS
Setting the d.h.w. pump timeout
Setting the domestic hot water load tempe-
rature limiter
The potentiometer on the P.C.B. in the boiler is used
to adjust the d.h.w. pump timeout.
The timeout can vary with an
adjustment range from 0 to
10 minutes (factory setting 4 min.)
#
The potentiometer on the P.C.B. in the boiler is used
to adjust the boiler temperature while heating domestic
hot water.
The load temperature setting can
vary from 60°C to 90°C / 140°F to 194°F
(factory setting 75°C / 167°F).
$
8575N070B
6
5
010
60 90
8575N075A
8575N075A
1
1
2
8575N054A
34
8575N056A
The settings defined below are applicable for
various functions, and the installation configu-
ration.They can only be modified by qualified
professional.
At the end of the work, reassemble the P.C.B. protection
plate and the top panel, in the same as for disassembly
but in the reverse order.
NOTE: do not omit the serrated washers
Access to d.h.w. pump timeout adjustment potentiometers and the d.h.w. load temperature limiter.
- Remove the top panel from the boiler.
- Remove the P.C.B. protection plate
Reassembly
8
Unscrew the attachment screw fastening the front of
the control panel.
#
Deactivating the domestic hot water priority
8575N072B
5
8575N124B
7
6
Tilt the front panel.
Remove the shunt (bridge).
%
$
Close the control panel and put the front panel back into
position, using the same procedure as for disassembly in
the reverse order.
When the domestic hot water priority is deac-
tivated, heating is no longer cut off during domes-
tic hot water heating phases.
Heating pump timeout
2
4
3
3
2
1
8575N133B
- Switch off the boiler power supply.
- Remove the front panel, proceeding as follows:
Lift the window.
Loosen the two attachment screws on the side
panels.
Pull the front panel clear from the clips and the
notches in the top part, pulling it towards you.
Detach the front panel from the notches near the
bottom of the side panels.
!
"
The heating pump timeout is fixed at 12 minutes after closing the room thermostat contact or changing to SUMMER mode.
9
VA
1a
1b
ZG
1
1a
2
2a
DJ 6A
2 1 TS
13
2
ZT
2a
2
2b
ZT
1a
1
1b
TEST
STB
TEST
STB ZEH
1b 1a
1
2b
2
2a
J3 1J3 2J3 3J3 4J3 5J3 8J3 7J3 6J3 9J2 2J2 1J2 3J2 4J2 5J3 10
S3 T2 T1 L1 B4
N
RL PA
RL ECS
RL BR1
T
J1 6
J1 2
J1 1
J1 5
J1 3
J1 41
11
12
22
2 1
11
12
22
2
CSVAL
LL
LN
NN
NL
LL
LN
NN
N L
LL
LN
NN
NN
NN
N
Alim
120V -60Hz
L
LL
LTAM CH. E.C.SSS
°F°F
8578N006B (8578-4902B)
A
SKELETON DIAGRAMS
AHEATING PUMP
LOAD PUMP
CS VENT SAFETY SWTCH CONTACT
DJ6A CIRCUIT BREAKER
JPRINTED CIRCUIT BOARD PLUG
LPHASE
NNEUTRAL
RL BR1 BURNER 1st STAGE CONTROL RELAY
RL ECS LOAD PUMP CONTROL RELAY
RL PA HEATING PUMP CONTROL RELAY
S CH BOILER SENSOR
S ECS DOMESTIC HOT WATER SENSOR
TAM ROOM THERMOSTAT [120V]
TCH BOILER THERMOSTAT
TS SAFETY THERMOSTAT
VA ALARM INDICATOR
XGROUND
ZEH SUMMER-WINTER SWITCH
ZG MAIN SWITCH
ZT TEST SWITCH
10
1. Main On/Off switch
Position ,On
Position ,Off
2. Alarm light
This light comes On when the burner is in safety (out of
order)
3. Summer/Winter switch
- "Winter" Position
Start the heating pump
- "Summer" position
Note:
The heating pump stops 12 minutes after the
changeover to "summer" mode.
4.
”Test-STB” push button
When held in the pressed position, tests the safety
thermostat and cuts off the pump(s)
5. Safety thermostat with manual reset
set to 110°C / 230°F
6. Timed circuit breaker (6 A)
7. Electronic thermostat
Adjustment of the boiler temperature
8. Light On
6. USAGE
0
I6A
104 122
140
158
x10
17650
68
86
86
104
122 140 158
176
194
8578N003
1234 56
78
9
10
For preparation of domestic hot water.
9. Light On
Display domestic hot water temperature
10. Electronic thermostat
Setting the average domestic hot water storage tem-
perature
Note:
When the system is switched On, it performs an
automatic bleed sequence of the hot water calorifier
exchanger lasting for 1 minute, by intermittently ope-
rating the domestic hot water load pump and the hea-
ting pump.
This bleed sequence is deactivated if the calorifier
temperature is more than 25°C / 77°F.
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