Installation Of Radiant Mixing Block - Taco Radiant Mixing Block Instruction Sheet

Installation of the Radiant Mixing Block
STEP ONE
1. Mounting position – The Radiant Mixing Block must be mounted in the vertical position with the automatic air vent located at the top
of the Radiant Mixing Block.
2. To mount the Radiant Mixing Block begin by removing the Radiant Mixing Control from the front of the Radiant Mixing Block.
Remove the screw and pull the Radiant Mixing Control straight forward. Ensure that the Radiant Mixing Control is stored in a
safe place until it is ready to be remounted.
3. Remove the three screw holding the green plastic cover to the Radiant Mixing Block.
4. Select a suitable location to mount the Radiant Mixing Block that allows sufficient space for easy pipe connections.
5. Attach the sheet metal base to the wall with screws (not included) through the small mounting holes. See technical data for hole
location and spacing.
6. Using four suitable screws (not included), fasten the Radiant Mixing Block to the selected location. Ensure that at least two of the
mounting screws are attached to a wall stud or similar surface.
STEP TWO
1. Using proper piping practices, connect the supply to the radiant heating system to the Radiant Supply (bottom right hand connec-
tion) as indicated on the plastic cover of the Radiant Mixing Block. Ensure that a proper isolation valve is installed.
2. Using proper piping practices, connect the return from the radiant heating system to the Radiant Return (top right hand connection)
as indicated on the plastic cover of the Radiant Mixing Block. Ensure that a proper isolation valve is installed.
3. Using proper piping practices, connect the supply from the boiler loop to the Boiler Supply (top left hand connection) as indicated
on the plastic cover of the Radiant Mixing Block. Ensure that a proper isolation valve is installed.
4. Using proper piping practices, connect the return to the boiler loop to the Boiler Return (bottom left hand connection) as indicated
on the plastic cover of the Radiant Mixing Block. Ensure that a proper isolation valve is installed.
5. Connect the Boiler Supply and Boiler Return lines to the boiler loop using standard Primary Secondary piping practices.
STEP THREE
1. Fill system with tap water – The system must be filled before operating the circulator. The bearings are water lubricated and should
not be allowed to operate dry. Filling the system will result in immediate lubrication of the bearings. It is always good practice to flush
a new system of foreign matter before starting the circulator.
2. Circulator operation – Operate the circulators for 5 minutes immediately after filling system to purge remaining air from the bearing
chamber. This is especially important when installing the circulator during the off-season.
STEP FOUR
1. Place the green plastic cover over the Radiant Mixing Block.
3. Reinstall the Radiant Mixing Control and fasten it in place with the remaining original screw. RMC wiring starts on page 8.
2. Using the original three screws, fasten the green plastic cover to the Radiant Mixing Block.
3. Reinstall the Radiant Mixing Control and fasten it in place with the remaining original screw. RMC wiring starts on page 9.
STEP FIVE
1. Electrical connections – Observe all applicable codes when connecting to power supply. The motors are impedance protected, and
do not require overload protection. The pumps cannot run backwards.
WARNING:
Do not use in swimming pool or spa areas; pump has not been investigated for this application.
WARNING:
In the event the retaining screws have been pulled out of the housing, DO NOT replace them. Use of any other screw
may short out the stator windings, creating a risk of electrical shock.
CAUTION:
1. The addition of petroleum based fluids or certain chemical additives to systems utilizing TACO equipment voids the
warranty.
2. Use supply wires suitable for 90
WARNING:
To avoid electrical shock, disconnect the power supply to the circulator and the main electrical unit.
4
MOUNTING
PIPING CONNECTIONS
FILLING
REPLACING THE FRONT COVER
ELECTRICAL CONNECTIONS
C – ATTENTION: Employer des fils d´alimentation adequats pour 90
°
C.
°