Installation manual

36 IM 1152
Valve and Piping Packages
Enhanced Packages
Enhanced valve and piping packages add a strainer to the
Basic package supply water pipe. The strainer is attached to
the supply water pipe at the coil connections. The strainer
body is cast brass construction with a stainless steel mesh that
is easy to remove for cleaning.
Figure 43: Enhanced Package
(See Figure 46 for components key)
Premium Packages
Premium valve and piping packages replace the Basic
package a ball valve in the return line with a manual or
automatic circuit setter. The manual circuit setter is also
known as a manual fl ow control valve. The auto circuit setter
acts as both a fl ow setting device and a shut-off valve. It
allows water fl ow through the fan coil to be set quickly and
accurately. The circuit setter includes a cartridge within the
valve body that is sized to allow a specifi c fl ow rate through
the coil without any action required by a system piping
balancer.
P/T ports are included, which are used to measure the
temperature or pressure drop across the valve. This pressure
drop can be compared to factory supplied tables that relate the
pressure drop to a specifi c fl ow rate. The manual circuit setter
valve also has a memory stop so that the correct setting can
be found quickly.
Figure 44: Premium Package
(See Figure 46 for components key)
Deluxe Packages
Deluxe valve and piping packages add a strainer to the
Premium package. The strainer is available with or without an
optional draining (blow-off) valve.
Figure 45: Deluxe Package
(See Figure 46 for components key)
Figure 46: Components Key for Schematics
Manual Shutoff Ball Valve: Water shut-off.
Handle rotates 90 degrees.
Manual Shutoff Ball Valve with Memory
Stop: Used on return line for limiting water
fl ow.
2-Way, N.C., On/Off Valve, Spring Return:
Turn On or Off water fl ow to the coil in
response to 24V or line voltage signal
3-Way, N.C., On/Off Valve, Spring
Return: Bypass water fl ow away from coil
in response to 24V or line voltage signal.
Includes fi xed orifi ce for balancing.
2-Way Modulating Valve (3-wire or
proportional): Modulates water fl ow in
response to 24V signal.
3-Way Modulating Valve (3-wire or pro-
portional): Modulates or bypass water fl ow
in response to 24V signal. Includes fi xed
orifi ce for balancing.
PT Port: For connecting a pressure or
temperature gauge.
Y-Strainer: Removable screen fi lters out
small particles from supply line during nor-
mal system operation.
Manually Adjustable Circuit Setter with
Shutoff: Pressure-dependent, ball-type,
manual fl ow control.
Cartridge-Type, Auto-Fixed Circuit Setter:
Pressure-compensated, automatic fi xed-fl ow
control.
Union: For easy removal of piping from coil.
Bypass Balancing Valve: Adjustable
balancing of water fl ow through the bypass
circuit on a 3-way control valve.
Note: Daikin McQuay 3-way valves are equipped with a fi xed balance orifi ce in the bypass
line, eliminating the need for a separate balancing valve
C
O
I
L
C
O
I
L
C
O
I
L