Technical data

InRow RP Technical Data Manual44
H. VARIABLE SPEED COMPRESSOR / VFD ASSEMBLY (AIR-COOLED ONLY)
1. Compressor: The unit shall be configured with a variable speed reciprocating hermetic
compressor using a matched VFD. As a result, the compressor speed can be varied through a
range between 30 and 85 Hz to accommodate varying load conditions. VFD firmware is
written to include oil return protection in cases where pipe velocities may drop to low speeds
during low loading periods.
2. Compressor is electrically protected through the VFD.
3. Compressor utilizes a noise cap for noise reduction.
4. Sight glass provided for air cooled system oil charging.
I. 3-WAY MODULATING VALVE (CHILLED WATER ONLY)
1. A floating point valve shall be microprocessor controlled to automatically direct the proper
amount of chilled water in the cooling coil to maintain desired conditions. A shut-off valve
located in the bypass line may be manually adjusted for 2-way flow if so desired.
2. Three way control valve shall be rated for 300 WOG with brass body and stainless steel ball.
3. Valve Actuator: Actuator shall be direct connect rotary floating point style actuator with
potentiometer feedback, and should be capable of being replaced without disconnecting piping
from the valve. Ability for manual operation is also provided.
J. CONDENSATE PUMP
Factory installed and wired condensate pump shall pump at 31.99 l/h (8.45 GPH) at 3.5 m
(11.5 ft) of head. Pump shall have a dual position internal float and a reservoir made of
polymeric materials to prevent corrosion.
K. FILTERS
1. The standard filters shall be 30% efficient per ASHRAE Standard 52.1, UL Class 2 (MERV 8
per ASHRAE 52.2). Filters shall be EN779 G4 efficient. The 96 mm (3.75 in) deep, pleated
filters shall be replaceable from the rear of the unit.
2. The optional filter shall be 85% efficient per ASHRAE Standard 52.1 (MERV 13 per
ASHRAE 52.2, EN779 F7).