D01 Enable Preheater Bank Electric - Viessmann VITOTRONIC 200 Service Instructions Manual

Parameter group Ventilation
Calling up the parameter group
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Coding level 1"
7D00 Vitovent enable
Vitovent
200-C 200-W 300-C
X X
Enabling of a ventilation unit for operation with the heat
pump.
Conditions:
The ventilation unit is connected to the heat pump con-
trol unit via Modbus.

7D01 Enable preheater bank electric

Vitovent
200-C 200-W 300-C
X
—
Enabling/function of electric preheating coil (accesso-
ries) for ventilation unit frost protection.
Value Vitovent 200-C
"0" Preheating coil is not enabled. A defrost function
without electric preheating coil can be set with
"Strategy, passive frost protection 7D2C".
"1" Defrosting via bypass:
If the heat exchanger is iced-up, the bypass is
activated. The outdoor air heated by the preheat-
ing coil flows past the heat exchanger via the by-
pass.
"2" Comfort function Frost protection:
The electric preheating coil is switched on if the
differential between supply air and extract air
temperature exceeds 4.5 K.
7D02 Enable reheater bank hydraulic
Vitovent
200-C 200-W 300-C
— —
250
!
300-F 300-W
X X X
!
300-F 300-W
X
— —
!
300-F 300-W
X
— —
3. "Ventilation"
4. Select parameter.
Value Meaning
"0" No ventilation unit is enabled
"1" Vitovent 300-F is enabled. The ventilation
parameters ("7Dxx") associated with this
ventilation unit can be set.
"2" Vitovent 200-C is enabled. The ventilation
parameters ("7Dxx") associated with this
ventilation unit can be set.
"3" Vitovent 200-W, Vitovent 300-C or
Vitovent 300-W is enabled. The ventilation
parameters ("7Dxx", "C1xx") associated
with this ventilation unit can be set.
Conditions:
The electric preheating coil is connected to the control-
ler PCB of the ventilation unit.
Vitovent 300-F
Preheating coil is not enabled. Frost protection
function without preheating coil is active.
Preheating coil is enabled. Frost protection is ac-
tive.
Never adjust
Enabling the hydraulic reheating coil (accessories) for
supply air heating.
Conditions:
The hydraulic reheating coil is installed in the ventila-
tion unit and connected to the heat pump as heating
circuit A1/HC1 (ventilation heating circuit).