Secondary Loop Heating System; Multiple Zones Using Zone Valves; Multiple Zones Using Pumps - NTI Trinity Ti 100 Installation And Operation Instructions Manual

6.2 Secondary Loop Heating System

The following are typical piping systems. It is the responsibility of the installing contractor to determine which system best meets the
need of the installation. Contractor modifications to these instructions may be required, based upon existing piping and system design.

6.2.1 Multiple Zones using Zone Valves

Primary
Loop
Normally closed 4 wire
Zone Valves
With End Switches

6.2.2 Multiple Zones using Pumps

Primary
Loop
Max. 12" apart
Zone Zone Zone
1 2
Max. 12" apart
Pumps sized to each
zones flow and head
requirements
Zone 1
Zone 2
Zone 3
7.2.1 "Multiple 4 wire Zone Valves"
for wiring
7.2.2 "Multiple Zones with Taco Valve
3
controller
7.2.3 "Multiple Zones using pumps
and pump controller"
Installer may require throttling and check
valves to correctly regulate the system
See figure
See figure
16