- 60 -
OPTIONS
4 - DOUBLE CIRCUIT KIT (REG 126)
The double circuit kit is used whenever a second
heating circuit is connected to the boiler:
- The 2nd circuit clip-in ensures communication
between the boiler's LMU management unit; the
2nd circuit pump control and also the mixer valve
motor (accessories supplied with the kit).
- The clip-in relay allowing a secondary pump (cir-
cuit 1) to work in parallel.
Refer to kit installation instructions.
5 - PROGRAMMABLE RELAY CLIP-IN KIT (REG 127)
The programmable relay clip-in kit (sensor inlet)
enables:
- a 2nd heating pump to be controlled in parallel
with the boiler pump in the case of operation
using a header.
- with the flow sensor positioned at the outlet of the
header, the heating outlet can be controlled after
the header.
- an external safety gas solenoid to be connected,
- an alarm to be connected.
Refer to kit installation instructions.
6 - CONTROL UNIT ZHTI 46 (REG 129)
The control unit ZHTi 46 enables an additional hea-
ting circuit to be controlled. (Required from 3 heating
circuits - refer to technical specifications of the ZHTi
46).
T
H
I-
19
-0
Fig. 54
T
H
I-
31
-0
Fig. 55
RE
G
1
21
Fig. 56
Summary of Contents for THI 10-50c
Page 61: ... 64 XII NOMENCLATURE THRi 10 50 C ...
Page 64: ... 67 NOMENCLATURE CONTROL BOX ...
Page 66: ... 69 NOTES ...
