51
Plug
sYA
Terminals
Function
Explanation
211.2
1.
Secondary pump
■ In systems without a heating water
buffer cylinder, no other heating circuit
pump is required (see terminal 212.2).
■ Connect the temperature limiter in ser-
ies as maximum temperature limiter
for underfloor heating circuit (if instal-
led).
Connection values
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Secondary pump connected at the fac-
tory; the temperature limiter must be
connected on site.
211.5
AC
Cooling activation
3-way diverter valves for
heating water buffer cylinder
bypass in cooling mode
Connection values
■ Max. output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect the 3-way diverter valves for the
bypass circuit in parallel.
Installation sequence
Electrical connection
(cont.)
5600 950 GB
Installation
Содержание Vitocal 222-S
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Страница 89: ...89 Opening programming unit 2 2x 1 3 Troubleshooting Repairs 5600 950 GB Service...
Страница 90: ...90 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5600 950 GB...
Страница 91: ...91 Overview of internal components Internal unit Troubleshooting Repairs cont 5600 950 GB Service...
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