Factory Installed Valve Package - Daikin PreciseLine Series Installation And Maintenance Manual

Condensate Drain Pan Traps
The condensate drain stub for sizes 006-050 is 0.75 OD.
The condensate drain stub for sizes 060-100 is 0.138 OD.
Drain lines and traps should run full size from the drain pan
stub. Drain pans should have traps to allow condensate from
coils to drain freely. The trap depth and distance between the
trap outlet and the drain pan outlet should be twice the static
pressure in the drain pan section under normal operation for
the trap to remain sealed. Refer to
Figure 45: Allow Adequate Distance Between Trap Outlet
and Drain Outlet
Pressure (P)
at the drain pan

Factory Installed Valve Package

The optional factory installed deluxe valve package includes
a temperature control valve, a ball shut off valve with supply
strainer, P/T port and clean out, and an automatic flow control
valve with ball shut off and P/T ports. The temperature control
valve is the Belimo B series characterized flow ball valve with
SS ball and stem and is selectable as 2-way or 3-way. The
valve flow coefficient and connection ports are appropriately
sized for the selected flow rate. The control actuator can be
configured for spring return on-off normally closed to the coil,
spring return on-off normally open to the coil or non-spring
return 0-10VDC modulating control. The strainer and ball shut
off valve assembly is the Nexus UltraY and the automatic flow
control valve and shut off assembly is the Nexus UltraMatic
model UM. The piping schematics are shown in
Figure 49. The control valve wiring diagrams are shown in
Figure 53 and Figure 54 and valve package component part
numbers are listed in Table 11 on page 25 through Table
On vertical units Size 06 and 08, the control valve is a Belimo
Zonetight. These valves can be selected as either 2-way
or 3-way, N.O. or N.C, and have a manually adjustable Cv
ranging from 0.5 to 5.9. These valves are located on the supply
side, adjacent to the coil, in contrast with other configurations
being located on the return side.
www.DaikinApplied.com
Figure 45.
2P
2P
Figure 48 and
13.
Figure 46: Basic 2-Way Valve Package
A AB
COIL
Figure 47: Basic 3-Way Valve Package
A AB
B
COIL
Figure 48: Deluxe 2-Way Valve Package (Auto CS)
A AB
COIL
Figure 49: Deluxe 3-Way Valve Package (Auto CS)
A AB
B
COIL
Figure 50: Deluxe 2-Way Valve Package (Manual CS)
A AB
COIL
23 IM 1267-7 • PRECISELINE AIR HANDLER
Installation