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Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
"DHW" Group
Coding in the factory set condition
"With 2 tank temperature sensors: Tank heating start point"
69:7
With 2 tank temperature sensors (coding
"55:2"): Tank heating start point at set
value x 0.7.
"Runtime, actuator, mixing valve, heat exchanger set, Vitotrans 222"
6A:75
Runtime, servomotor, mixing valve, heat
exchanger set, Vitotrans 222, (80 and
120 kW): 75 sec.
"DHW recirculation pump"
70:0
DHW recirculation pump "ON" according
to time program when DHW heating is
enabled.
71:0
DHW recirculation pump "ON" according
to time program.
72:0
DHW recirculation pump "ON" according
to time program.
73:0
DHW recirculation pump "ON" according
to time program.
75:0
DHW recirculation pump "ON" according
to time program.
"Solar" Group
Only in conjunction with solar control module, type SM1.
Coding in the factory set condition
"Differential between the actual DHW temperature and the start point for the solar circuit pump"
00:8
Start temperature differential for solar
circuit pump 14°F (8 K)
"Differential between the actual DHW temperature and the stop point of the solar circuit pump"
01:4
Stop temperature differential for solar
circuit pump 7°F (4 K)
"Solar circuit pump speed control"
02:0
Solar circuit pump is not speed-controlled
(continued)
Possible change
69:1
Factor adjustable from 0.1 to 0.9
to
1 step
69:9
6A:10
For heat exchanger set Vitotrans
to
222 (240 kW): set 113 sec. Runtime
6A:255
adjustable from 10 to 255 sec.
70:1
DHW recirculation pump "ON" according
to time program.
71:1
"OFF" during DHW heating to set value 1.
71:2
"ON" during DHW heating to set value 1.
72:1
"OFF" during DHW heating to set value 2.
72:2
"ON" during DHW heating to set value 2.
73:1
"ON" from once per hour for 5 min up to
to
6 times per hour for 5 min during the
73:6
time program.
73:7
Constantly "ON"
75:1
DHW recirculation pump "OFF" during
economy mode.
Possible change
00:2
Adjustable from 4°F to 72°F
to
(2 K to 30 K).
00:30
01:1
Adjustable from 2°F to 52°F
to
(1 K to 29 K).
01:29
02:1
Variable speed solar circuit pump with
wave packet control.
02:2
Solar circuit pump speed controlled
with PWM control.
Coding Level 2
0.1.
161
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