Reznor YDSA Unit Installation Manual - Manual (Page 58)

Form I-Y, P/N 273646R6, Page 58
FIGURE 29B - Condensate Drain Trap
for High-Efficiency Heat Section Drain
Trap Installation:
Install the trap as shown in either illustration.
The trap must be installed vertically with the
float above the spring as shown. DO NOT
INSTALL THE TRAP HORIZONTALLY.
(
NOTE: Check kit contents; some
connections shown and all straight PVC
parts are field supplied.)
Trap Maintenance:
Open the cleaning ports and use the brush
provided to clean the drain.
To clean the trap and float, unscrew the
retaining ring and remove the bottom section
of the trap. Remove float and spring. Clean
all parts with soapy water.
Re-assemble by inserting the spring and
float into the bottom trap section, position the
bottom section into the top, and secure with
the retaining ring.
Sample Configurations -- Trap may be installed in a
variety of configurations but MUST be vertical.
Trap
Trap
Trap
Trap
High Efficiency Heat Section Condensate Drain (cont’d)
Instructions for Installing High Efficiency Heat Section Condensate
Drain
1) Attach the field-provided 1/2” PVC pipe to the condensate drain connection(s) as
shown in FIGURE 29A, page 57. If the units has dual heat sections, connect a
PVC pipe to each drain. If there are two drains, join the drains with a field-provided
tee before installing the trap.
2) Install the freeze resistant trap, P/N 271064 (FIGURE 29A, page 57). Refer to
FIGURE 29B, shown below and follow the manufacturer’s instructions to install
and maintain the trap.
3) Continue the line from the trap inside the building and into a sanitary drain.
9.3 Electric Heat
Section
A unit with an electric heat section is equipped to provide from 30 to 120 kw of electric
heat. The electric elements are located in the discharge airstream and are accessible
through the electrical compartment.
An electric heat section in a Model YDSA may have either two to four stage control or
SCR modulating control. Models YDHA and YDMA are equipped with SCR modulating
control. Call for heat and staging are controlled by the unit controller.
Modulating heating operation is controlled by an SCR modulating control. There will be
one or two SCR controllers located on an electrical panel in the electric heat section.
WARNING
The heatsink on the SCR power controller is hot to the touch.
SCR Controller
DANGER
High voltages are present on the terminals of the SCR power
controller(s).
Modulating Electric Heat
9.2 Gas Heat Section (cont’d)
9.0 Optional Equipment including Heat Sections (cont’d)