Miscellaneous

Amtrol® EXTROL® 118-155 SX Series Vertical Hydronic Expansion Tank, 86 gal Capacity, 0.53 Acceptance, 46 gal Acceptance, 100 psig Pressure, Heavy Duty Butyl/EPDM Diaphragm, 26 in Dia x 47 in H

Backflow Preventers

Caleffi 573002A AutoFill Combo 1/2 inch Female Automatic Water Boiler Feed with Backflow Preventer

Parts

Viessmann 9544 483 VMM40 24 volt Actuator

Viessmann Manufacturing® 7134771 Adapter, 4 in Dia, CPVC

Viessmann 7373 253 Double Pipe Vent Adapter

Viessmann 7441 586 KMK BUS Communication Module

Viessmann ZK01151 2-1/2 inch Three Way Mixing Valve

Indirect Water Heaters

Viessmann Manufacturing® ZK06893 Vitocell Storage Tank, 119 gal Nominal