Product Overview

PI-PR-561142 0613 (Copper Manifold-Valved)
3 of 4
Product
Instructions
Viega LLC, 301 N. Main, 9th Floor • Wichita, KS 67202 • Ph: 800-976-9819 • Fax: [phone]
Memory
Spindle
Shut-Off
Valve
PEX Press
Purging and Pressurization
1. Open the supply and return isolation valve (ball valve) and all supply and return circuits to fill the copper manifold from the
heat source (n/a for valveless manifolds).
2. Connect drain hose (i.e. washing machine hose) to hose thread on the return manifold copper end cap purge
valve (draw-off).
3. Open purge valve (draw-off)
4. Close supply isolation valve and leave the return isolation valve open. Purge the return line.
5. Close return isolation valve and open the supply isolation valve. Purge the supply.
6. Close supply and return shut-off / balancing valves on manifold, leaving the memory spindle on the balancing valves
fully open.
7. Open the supply manifold circuit and return manifold circuit that is furthest from the draw-off; push air through the entire
circuit and out the draw-off eliminating air from that circuit.
8. Once the air has been purged, close the supply and return circuits.
9. Move onto the next circuit; watch the pressure gauge on the heat source; do this for each circuit: open, purge, close.
10. Once purging is complete, close draw-off and disconnect hose; open circuits and balance if necessary.
11. Open the return isolation valve.
Isolation Valve
Automatic Vent
Purge Valve
(draw-off)
Shut-Off Ball Valve