RHT Hydronic Fill & Purge SystemSubmittal Information

Project InformationJob Name:

Location: Part No. Ordered:

Engineer: Date Submitted:

Contractor: Submitted By:Manufacturer’s Representative: Approved By:

Technical Data

Product Information and Application Use

7 gallon polyethylene tank with gallon markings

Fast fill makes it easy to purge a wholeradiant heating system

Water or glycol managment and purging system

5 GPM pump with integrated pressure switch,turns on at 15psi and off at 25psi, sufficient flow and headpressure to purge most hydronic heating systems

To adjust pressure, turn red phillips head screw on the backof the pump in small increments, clockwise to increasethe pressure, counterclockwise to decrease pressure

4" vented manway used for fill and return when purging

Optional wall mounting brackets available separately

1 year warranty on pump

The RHT Hydronic Fill and Purge System meets a relatively high head pressure and flow rate (as shown in the figure below) for filling and purging air from hydronic systems. With the removeable 4” fill port fluids can be mixed in the 7 gallon container and pumped directly into a hydronic system. Return fluid can be directed back into the 7 gallon tank minimizing waste when using a glycol mix during the air purging process. See page 2 for purging diagram. Leave pump plugged in to power during normal boiler operation.

NOTE: The RHT Hydronic Fill and Purge System is not intended for use in line with or as feed to a backflow prevention and/or pressure reducing device. If used with such a device, the unit must be on a separate feed line into the system.

p.1

tosystem

red screw forpressure

adjustment

15.75” 9”

13.5

”

11.875”

17.75” 10.125”

supply/return lines to/from manifolds

ECM

su

pp

ly c

ircu

lato

r pu

mp

s

return ball valves w/ purge drains

expansion tank

air eliminator

supply from boiler

return to boiler

Hydronic Fill & Purge Systemwith Dominator Pump Distribution Panel

per

man

entl

y co

nn

ecte

dw

ater

mak

e-u

p/a

uto

-fill

4” vented fill port

5gpmpressure switched

purge pump

7 galloncapacity

tank

Shown with Zone 1&2 supply pump flanges andreturn ball valves closed for purging of Zone 3.Re-open pump flanges and return ball valvesduring normal operation.

1 2 3

diverterball valve

in drain position

drain hose returning glycol/water mix to fill unit

p.2