Viessmann VITOCAL 242-G Installation And Service Instructions Manual page 26

Preparing for installation
System version 1
Components to be connected
Connect capacitor to full wave soft starter
Only with natural cooling:
Connect the required components to extension kit wP
and natural cooling qR extension kit
Only when using an underfloor heating system:
Connect temperature limiter
Equipment required for system version 1
Equipment required
Pos. Description
1 Compact Energy Tower
5 Overflow valve
6 Diaphragm expansion vessel for the heating circuit
7 Temperature limiter (only required for the underfloor heat-
ing circuit)
qP Underfloor heating circuit
qU KM BUS distributor
qI Vitotrol 200 remote control
qO Room temperature sensor
wI Heating circuit extension
wO Connection panel
DHW circulation option
qE DHW circulation pump
wU DHW circulation extension
Option solar heating circuit (only with Vitocal 242)
wE Solar collectors
wR Collector temperature sensor
wT Diaphragm expansion vessel for the solar circuit
wZ Solar circuit extension
Option "Natural cooling" function
8 Vitotrans 100, plate-type heat exchanger
qR Natural cooling extension kit
wP Extension kit for cooling circuit with mixer
eP Natural cooling contact humidistat
eQ Circulation pump (secondary cooling circuit pump)
eW Three-way diverter valve heating/cooling
eE Motorised two-way ball valve (for the brine circuit)
eR Frost stat
eT Circulation pump (primary cooling circuit pump)
26
(cont.)
Connection descrip-
tion
see page 89
See separate installa-
tion instructions
see page 68
Number
1
1
1
1
1
1
1
1
1
1
1
1
as required
1
1
1
1
1
1
1
1
1
1
1
1