15
7 - CONNECTING SUPPLY AND RETURN PIPING
Figure #12 - Recommended Piping For Boilers Equipped With T3 Or T4 Tankless Heater
DANGER
Water temperatures exceeding 125°F will cause
severe burns instantly or death by scalding�
!
8.
Typical indirect water heater installation using
circulators is shown in Figure #10�
9.
Typical indirect water heater installation using zone
valves is shown in Figure #11�
10.
Install automatic mixing valve on outlet of
domestic coil� Installation must comply with valve
manufacturer’s recommendations, and instructions�
• Do not remove bolts or limit at time of installation�
• Pipe in accordance with boiler’s Installation,
Operation and Maintenance Manual�
•
Due to varying water conditions, adjustable flow
restricter must be installed in cold water inlet of this
coil�
PN 240013073, Rev. A [08/31/2020]