Commissioning, Inspection, Maintenance; Filling And Venting On The Secondary Side; Commissioning The System - Viessmann Vitocal 300-G Pro SPS Installation And Service Instructions For Contractors

Filling and venting on the primary side
3. Charge the primary circuit with Viessmann heat
transfer medium and vent.
Note
The system must be protected against frost down to
–15 °C.
!
Please note
To prevent appliance damage, check the flow
and return connections of the heat pump pri-
mary circuit for tightness.
In the case of leaks, switch off the heat pump
immediately, drain the primary circuit and
check the seating of the gaskets. Replace
faulty or displaced gaskets.

Filling and venting on the secondary side

!
Please note
To prevent appliance damage,
fill the secondary circuit before switching on the
mains power.
Note
Before filling the system, observe VDI 2035 part 1.
1. Check the Victaulic connections in the heat pump
for tightness. The Victaulic couplings must be form-
locked and fitted together seamlessly.
2. Open any on-site non-return valves if installed.
3. Check the pre-charge pressure of the expansion
vessel.
Checking expansion vessels and primary circuit/secondary circuit pressure
Observe engineering information.
Heat pump technical guide

Commissioning the system

Commissioning is carried out in 3 stages:
■ 1. System configuration
■ 2. Operating mode configuration
■ 3. Adjusting operating parameters
The system is configured with the aid of a commission-
ing assistant. Parameters must be set and the system
controller configured individually according to require-
ments (see the following chapter and service instruc-
tions "Heat pump control unit Vitotronic SPS"). Operat-
ing parameters can be adjusted without a password.

Commissioning, inspection, maintenance

(cont.)
4. Fill (flush) and vent the secondary circuit.
!
Please note
To prevent appliance damage, check the flow
and return connections of the heat pump sec-
ondary circuit for tightness.
In the case of leaks, switch off the heat pump
immediately, drain the secondary circuit and
check the seating of the gaskets. Replace
displaced gaskets.
5. Check the system pressure and top up with water if
required.
Minimum system pressure: 0.8 bar
Permiss. operating pressure: 2.5 bar
Note
The type and extent of parameters depend on the heat
pump type and the system configuration.
Observe the instructions in the separate service
instructions of the Vitotronic SPS heat pump control
unit, otherwise the appliance warranty will be void.
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