Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual page 122

Additional information
Coding 2
(continued)
Overview of all codings (continued)
Coding as per Function
factory setting
Address: Value
59: 0 DHW
5A: 0
DHW
60: 20 DHW
61: 1 DHW
62: 10
DHW
64: 2 DHW
66: 4 DHW
122
DHW tank heating:
Switch-on point
– 2.5°C / 4.5°F
Switch-off point
+ 2.5°C / 4.5°F
Without function
When domestic hot water is
being heated, the boiler
water temperature is a
maximum of 20°C / 36°F
higher than the desired
domestic hot water
temperature
Circulation pump switches
on immediately
Circulation pump with p p
run-on time of 10 minutes
During the party mode:
Continuous domestic hot
water heating and DHW
circulation pump ON
Input of DHW temperature
set-point value on the
programming unit of the programming unit of the
control unit and all Vitotrol
300 remote controls
installed
New coding Possible change
Address:
Value
59: 1 Switch-on point variable between 1 and 10°C
to / 34 and 18°F below setpoint value
59: 10
5A: 1 Supply temperature request of DHW tank is
the maximum value of the system
60: 10 Differential between boiler water temperature
to and desired DHW temperature adjustable
60: 50 between 10 and 50°C / 18 and 90°F
61: 0 The circulation pump is switched on as a
function of the boiler temperature
62: 0 Circulation pump without run-on time
62: 1 Run-on time variable from 1 to 15 minutes
to
62: 15
64: 0 No domestic hot water heating, DHW
circulation pump OFF
64: 1 Domestic hot water heating and DHW
circulation pump according to preset time
program
66: 0 Only on the programming unit of the control
unit
66: 1 On the programming unit of the control unit
and on the remote control for system circuit
A1
66: 2 On the programming unit of the control unit
and on the remote control for mixing valve
circuit M2
66: 3 On the programming unit of the control unit
and on the remote control for mixing valve
circuit M3
66: 5 Only on the remote control for system circuit
A1
66: 6 Only on the remote control for mixing valve
circuit M2
66: 7 Only on the remote control for mixing valve
circuit M3