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Download Viessmann VITOCAL 300-G Operating instructions
Transcript
Installation sequence Hydraulic connections (cont.) 4. Insulate lines inside the building to provide protection from heat and vapour diffusion. 5. Fill the primary circuit with Viessmann heat transfer medium and vent. Installation Note ■ Expansion vessel must be approved to DIN 4807. Diaphragms of expansion vessel and safety valve must be suitable for the heat transfer medium. ■ Blow-off and drain lines must converge in one container that can hold the maximum possible expansion volume of the heat transfer medium. 2. Ensure adequate thermal and sound insulation of all pipes routed through walls. 3. Connect primary lines to heat pump. ! ! Please note To prevent equipment damage, connect on-site primary lines to the heat pump so that they are free of load and torque stresses. Please note Make tight hydraulic connections on the primary side. In the case of hose outlets, ensure grommets are seated correctly (if necessary, seal with sealing tape, see page 116). 5442 829 GB Connecting the secondary circuit 1. Equip the secondary circuit on site with an expansion vessel and safety assembly (in accordance with DIN 4757). Fit the safety assembly to the on-site line in the heating water return. 2. Connect secondary lines to heat pump (7 ≥ 42 mm). 71
