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ManualsBrandsViega ManualsHeating Supplies3/4" ProPress x PEX Press ProRadiant Zone Valve

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Product

Instructions

PI-PR 566490 0514 (Zone Valve)

Viega LLC, 301 N. Main, 9th Floor • Wichita, KS 67202 • Ph: 800-976-9819 • Fax: 316-425-7618

Viega

Zone Valve

Viega zone valves are used to control the ow of uid

within a hydronic heating or cooling system. They do

so by opening when there is a thermostat demand, and

closing when the demand has been met. Viega zone

valves are available in ¾" and 1", with three different

connection types, ProPress x ProPress, ProPress x PEX

Press and solder x PEX Press. Installation instructions for

each type can be found below.

Installation Instructions

1. Connect the tailpieces to the tubing, for actual

instruction on how to make a solder, press or

ProPress connection see pages 7, 8 or 9.

2. Insert the gasket in between the tailpiece and the

zone valve body.

3. Tighten both tailpiece nuts onto the zone valve

body. When installing the zone valve align the arrow

on the valve body with the direction of flow.

4. Make sure to properly test the system once all

connections are made. See page 9 for testing

instructions.

Part Number Connection Type Size

17230 Solder x PEX Press ¾"

17231 Solder x PEX Press 1"

17232 PP x PP ¾"

17233 PP x PP 1"

17234 PP x PEX Press ¾"

17235 PP x PEX Press 1"

Summary of content (10 pages)

PAGE 1
Product Instructions Viega® Zone Valve Viega zone valves are used to control the flow of fluid within a hydronic heating or cooling system. They do so by opening when there is a thermostat demand, and closing when the demand has been met. Viega zone valves are available in ¾" and 1", with three different connection types, ProPress x ProPress, ProPress x PEX Press and solder x PEX Press. Installation instructions for each type can be found below.
PAGE 2
Product Instructions Mounting the powerhead to the zone valve 1. Connect the adapter ring to the zone valve, hand tighten only. 2. Place the powerhead over the adapter ring and push down firmly. 1 NOTE: To remove the powerhead push in on the square tab and pull up. With the powerhead separated from the from the zone valve, the zone valve will remain in the normally open position. 2 Wiring the zone valve powerhead to a Viega digital thermostat 18050 1.
PAGE 3
Product Instructions Wiring the zone valve to a Viega digital thermostat 15116, 15117, 15118 1. Connect a yellow wire from the zone valve powerhead to the C terminal on the digital thermostat. 2. Connect the other yellow wire from the zone valve powerhead to the W terminal on the thermostat. This terminal is labeled W/E on thermostat part number 15118. 3. The red wires can be connected to the boiler contact (TT), pump relay or other auxiliary device requiring contact closure. 4.
PAGE 4
Product Instructions Wiring the zone valve to the zone control Thermostat -15116 RH RC G Y C O B W Thermostat -15118 Thermostat -15117 RH RC G Y Y2 C O B W/E W2 RH RC G Y C O B W Thermostat -18050 C C R W POWER IN 120 V AC Power Supply L R ZONE 4 PRIORITY ISOLATED END SWITCH RWC ZONE 1 PUMP END SWITCH N/O COM N/C ZONE 4 RELAY N Viega ZONE 1 1 2 3 RWC ZONE 4 4 ZONE 2 1 2 3 4 ZONE 3 1 2 3 4 OFF ON ZONE 4 Yellow Yellow Red Red Viega LEGEND: Zone Controls RWC ZONE 3 RWC ZONE
PAGE 5
Product Instructions Piping the zone valve 1 Stage 1 Stage 1 Stage T-STAT T-STAT T-STAT LEGEND: Hydronic Mixing Block Hydronic Mixing Block ZONE CONTROL Spring check Circulator To Other Zones Draw Off (Purge Valve) Make - Up Water Pressure Differential Bypass Valve 1 Stage 1 Stage 1 Stage T-STAT T-STAT T-STAT Stainless Manifold w/ Flow Guages Outdoor Sensor (S3) Baseboard Zone (s) ZONE CONTROL HIGH TEMP PUMPS Diaphram-Type Expansion Tank Viega Relay Boiler Sensor (S1) Zone Valve Primary Lo
PAGE 6
Product Instructions Piping the zone valve (continued) 1 Stage 1 Stage 1 Stage T-STAT T-STAT T-STAT Viega Outdoor Viega Indoor Viega Basic Sensor (S2) Viega LEGEND: ZONE CONTROL Sensor (S3) Primary Loop Pump (P1) Viega 1 Stage 1 Stage 1 Stage T-STAT T-STAT T-STAT LEGEND: Enhanced Mixing Station Enhanced Mixing Station Viega Viega Viega Spring check Outdoor Sensor (S2) Viega Basic Indoor Sensor (S3) Circulator ZONE CONTROL Draw Off (Purge Valve) Make - Up Water Pressure Differential B
PAGE 7
Product Instructions Making a ProPress connection Read and understand all instructions for installing Viega ProPress fittings. Failure to follow all instructions may result in extensive property damage, serious injury or death. 1. Cut copper tubing at right angles using displacement type cutter or fine-toothed steel saw. 1 2 3 2. Remove burr from inside and outside of tubing to prevent cutting sealing element. 3. Check seal for correct fit. Do not use oils or lubricants. 4.
PAGE 8
Product Instructions Making a PEX Press connection 1. Square off tubing to proper length. Uneven, jagged or irregular cuts will produce unsatisfactory connections. 2. If using FostaPEX tubing, insert into prep tool, push and turn until no resistance is felt. If using ViegaPEX Barrier tubing, continue to step 3. 3. Insert PEX Press fitting with attached sleeve into tubing and engage fully. 2 1 4. Ensure full tubing insertion at view holes in attached press sleeve.
PAGE 9
Product Instructions Tailpiece soldering 1. Cut the copper tubing cleanly with a tubing cutter. 2. Ream and de-burr the cut tubing. 3. Clean the inside of the tailpiece solder cup and the outside of the copper tubing with a fitting brush and emery cloth. 4. Brush an even layer of flux over the copper tubing and within the tailpiece solder cup. 5. Insert the tubing into the solder cup until the copper tubing seats fully, wipe off excess flux. 6.
PAGE 10
Product Instructions Technical Data: On/off indicator The zone valve powerhead has a cylinder on the top that will raise and expose blue when the valve is open. You will be unable to see any blue when the valve is in its normal closed position. Initially-open function The zone valve is delivered in the open position. This allows for easier installations and also allows for the installer to pressure and flow test each circuit before connection the power.