- 8 -
Back Position
: Normal operation, process and manometer port closed
Front Position
: Liquid/suction line connection closed
Middle Position
: All ports open for evacuation, charge and manometer reading
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 6 ROTALOCK Valve Operation
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 7 Base Valve Operation
1 - Process & Manometer; 2 – Receiver Discharge or Compressor Suction
3 – Liquid Line or Suction Line; 4 - Pressure Control
3. Evaporator Unit
•
The WM-15SFC evaporator units shall be installed for ceiling mount with
the air supply towards horizontally and air return on the bottom.
•
The WM-19SFC evaporator unit shall be installed for wall mount with the
air supply towards top and air return on the sides.
•
Supply air flow shall be unobstructed for at least 12” for free installation or
2” for deflector installation and return air shall be unobstructed for 6”.
•
There is a gravity drain line and the unit shall be installed level or with a
slight angle toward the drain connection. If rise-up is needed, a
condensation pump must be used.
