Installation Instructions For Electrical Installer; General; Electrical Specifications; Mains Voltage - REMEHA Gas 310 ECO Technical Information

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INSTALLATION INSTRUCTIONS FOR ELECTRICAL INSTALLER

8.1 General

The Remeha Gas 310 ECO is supplied as standard with
electronic operating and flame ionisation safety controls
with a specially designed microprocessor at the heart of
the system.
The boiler is pre-wired as shown in the wiring diagram
in fig. 18. All external connections can be made on the
terminal strips (one low voltage 24V AC and one mains
voltage 230V AC).
Each boiler must be installed with its own two pole iso-
lating switch in the mains supply rated at 10 amps.

8.2 Electrical specifications

8.2.1 Mains voltage

Each boiler requires a 230v – 1 – 50 Hz supply rated
at 10 amps with phase/ neutral/ earth. The boiler is
sensitive to phase/neutral and therefore has a facility to
ensure that phase and neutral are correctly connected.
If phase and neutral are crossed, the display will flash
L-n / n-L alternately.

8.2.2 Control unit

Manufacturer : Honeywell
Type : MCBA 1458 D
Mains voltage : 230 V/50 Hz
Safety time : 3 sec.
Each Remeha Gas 310 ECO has a unique "boiler
code". These codes, together with other data as boiler
type, counter data, etc., are stored in a "code-key" that
belongs to the boiler. If the control unit is replaced this
information remains
stored in the code-key.
fig. 13 Position code-key
62560.indd 22 62560.indd 22
Gas 310 ECO

8.2.3 Power consumption

Power consumption at stand-by /part load /full load:
- 5 sections: 12 Watt / 53 Watt / 303 Watt
- 6 sections: 12 Watt / 56 Watt / 340 Watt
- 7 sections: 12 Watt / 77 Watt / 470 Watt
- 8 sections: 12 Watt / 77 Watt / 600 Watt
- 9 sections: 12 Watt / 80 Watt / 858 Watt
Max boiler module start current 4 amps excluding a
"system pump" if connected to terminal block X27 con-
nections 9 and 10.

8.2.4 Fuse ratings

The circuit board on the control unit contains the follow-
ing fuses:
F1 - 2 AF mains voltage fuse (automatic fuse)
F2 - 2 AT for gas valve multiblock
F3 - 2 AT for 24 V circuit
F10 - 2 AT for shunt pump
F11 - 1 AT for flue gas damper
F12 - 1 AT for butterfly valve
F13 - 2 AT for heating pump
F14 - 1 AT for external gas valve
X12 X7 X8
1 1 1
20 10 4
1
X05 X04 X02 X10
fig. 14 Control unit
00.31H.79.00009
fig. 15 fuse plan
The boiler fuse F is located behind / next to the 230V
a
terminal strip. This fuse de-energises the whole boiler
and has a rating of 10 AT.
The fan has Power Factor Control (PFC ensures that the
mains supply is distributed more uniformly) and is fused
with a 6.3 AT fuse F (behind / next to the 230V terminal
b
strip).
22
Remeha
X14
ONTSTEKING /
IGNITION /
ALLUMAGE /
ZÜNDUNG
F03
2AT
2AT 1AT 1AT 2AT 1AT 2AT 2AF
F10 F11 F12 F13 F14 F02 F01
9 1 17 1 13 1
X03-1 X03-2 X01
18-6-2009 13:14:55 18-6-2009 13:14:55
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