Intergas Rapid 25 Installation Manual

Intergas Heating Ltd 23
6.3.2 On / Off room thermostat
To be connected to contacts 6 and 7 of connector X4.
This is a 24 volt connection and no mains power must be applied to these terminals.
See chapter 13, electrical diagram.
Note
When a 24 volt thermostat is connected to contacts 6 and 7, the loop in 6 – 7 must be
removed
1. The on/off room thermostat has to be connected to the contacts 6 and 7 of connector X4.
2. The allowed maximum electrical resistance of the room thermostat and wiring is 15 Ohm.
6.3.3 Open Therm room thermostat
Open therm is a protocol that enables the boiler and the room thermostat to
communicate. Based on the information from the room thermostat the flow
temperature of the boiler is adjusted to the most optimal value.
The Open Therm (OT) room thermostat has te be connected to the contacts 11
and 12 of connector X4 (see chapter 13, electrical diagram ).
CAUTION
Connecting the Open Therm room thermostat to other
contacts than 11 – 12 may damage the room thermostat !
NOTE
When an Open Therm thermostat is connected to
contacts 11 and 12, the loop in 6 – 7 must be removed.
6.3.4 Outside temperature sensor
The appliance is equipped with a connection for an outside temperature sensor.
The outside temperature sensor can be used in combination with an on/off room
thermostat or an OpenTherm thermostat.
Connect the outside temperature sensor (See § 8.3.1).
For the heating line setting, see weather-dependent regulation (See § 10.6 ). The
sensor should be fitted where possible on a north facing wall.
6.3.5 230 volt room thermostat
To be connected to contacts 1 and 3 of connector X2 and remove link 6-7.
See electrical diagram.
6.3.6 S and Y zone plans
Any combination of external controls for time /temperature and heating of external DHW
cylinders or CH zones can be connected to the boiler.
All controls/ zones should be connected in an external wiring centre and a switched live
connected to 1 on X2. Set in-built timer to C-ON.
Always remove link between 6-7 on X4 when fitting external temperature controls
or the boiler will run constantly
Warning High Voltage
Isolate the appliance from the electrical supply before
connecting the thermostat.

Intergas Rapid 25 Specifications

General

Boiler Type	Combi
DHW Output	25 kW
Efficiency Rating	93%
Flow Rate	10.2 l/min
Mounting	Wall Mounted
ERP Efficiency	A
Max Gas Rate	2.78 m³/h
Dimensions (H x W x D)	590 x 450 x 240 mm