Scholar V Installation & Startup Manual 07/2016 New
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fitting. Because the condensate drain trap is factory installed, run the drain line directly
to the roughed-in stub out. All materials for the condensate drain hook-up are field
supplied.
D. 1.
Wet heat hook-ups
are done by connecting the rough-in piping to the factory
supplied coils inside the plenum.
For
hot water heating
, the plenum is equipped with a coil and a freeze
protection thermostat embedded in the coil. An optional diverter valve may also
be factory installed. The front and top panels of the plenums are removable,
to access the coil and make piping and wiring connections. Consult hot water
plenum installation instructions for installation details or see Appendix C in back
of this manual.
1.12 VENTILATION SYSTEM CALIBRATION
Prior to start-up of the Scholar V heat pump or air conditioner, the ventilation system
requires calibration to ensure the appropriate amount of fresh air is delivered to
the classroom. Refer to the appropriate following ventilation system and use the
instructions to calibrate the system for correct air delivery.
A. Manual Fresh Air System. This ventilation module is standard with the Scholar V
heat pump and air conditioner. Fresh air ventilation by means of a damper with
pressure relief provides up to 450 cfm of outside air. The damper can be manually
adjusted at installation to provide the required ventilation airflow.
The fresh air door should be set in accordance with the amount of fresh air flow
required, up to a maximum of 450 CFM. Figure 10 illustrates the fresh air door
settings and air flow rates.
Follow the directions in Figure 10 to ensure proper air flow rate settings. After
calibrating the ventilation system, replace the lower front cabinet panel.
B. Two position motorized damper and PowerVent Fresh Air Systems. The two position
(open & closed) ventilation module is equipped with a motorized damper and
pressure relief, and provides up to 450 cfm of outside air. The damper position can
be adjusted at installation to provide the required ventilation air flow. The motorized
damper operates by an external relay with a choice of 24, 120, or 240V coils, to
regulate fresh air ventilation in response to a control located remotely from the heat
pump or air conditioner. The two motorized damper ventilation option includes the
ventilation intake air mover and a fan speed controller for the air mover.
This PowerVent ventilation module features a motorized damper, as above, plus
powered exhaust ventilation to provide up to 450 cfm of outside air. The damper
position can be adjusted at installation to provide the required ventilation air flow.
The PowerVent option includes both a ventilation air intake air mover and an
exhaust air mover. A single fan speed controller that controls both air movers is
standard. An exhaust air fan speed controller is available as an option. This speed
controller regulates the exhaust air motor and allows separate control of the exhaust
air. Independent control allows positive pressurization of the classroom, i.e., more
outside air can be brought into the classroom than what is exhausted.
