Connection To Heat Pump Control Unit - Viessmann VITOTRONIC 200 Service Instructions Manual

Function description
Smart Grid
(cont.)

Connection to heat pump control unit

Requirement: "Enable Smart Grid 7E80" set to "4".
X3.1 X3.1
B
C D
A
Fig. 10
Main PCB
A
Connection X3.1 (L') at the luster terminals
B
Floating contact 1: The agreement of the power
C
supply utility may be required
Floating contact 2: The agreement of the power
D
supply utility may be required
Functions
Floating contact
1 ( C ) 2 ( D )
0 0
X
0
X
0
36
Function
Heat pump in standard mode
1
Power-OFF
2
Compressor OFF
■
The instantaneous heating water heater can be switched ON ("Output for in-
■
stant. heating water heater at power-OFF 790A").
Operation of the heat pump with adjusted set temperatures for different func-
3
tions. The modifications are adjusted with the following parameters:
DHW heating:
■
"Smart Grid set value increase for DHW heating 7E91"
Buffer cylinder heating:
■
"Smart Grid set value increase for htg wtr buff 7E92"
Central heating:
■
"Smart Grid set value increase for centr htg 7E93"
Central cooling:
■
"Smart Grid set value decrease for room t cool 7E95"
The compressor only starts when there is a demand. The applicable start
■
conditions for the relevant function must be met. A time phase must be active
in time program for the relevant function.
The adjusted set temperatures do not affect the booster heaters. The booster
■
heaters are switched off at the limits that apply without Smart Grid.
Note
If the Smart Grid is connected to the two digital
■
inputs on the main PCB ("Enable Smart Grid 7E80"
set to "4"), the external hook-up for the heating/cool-
ing circuits must not be switched on ("Remote con-
trol 2003" set to "2"). Otherwise, the Smart Grid is
not active.
The power-OFF function is integral to Smart Grid.
■
The power-OFF signal must therefore not be con-
nected to connections X3.6 and X3.7.