Catalogue

46 WSHP-PRC020D-EN
Dimensional Data
Note: This page may be used in riser schedule preparation for field installed risers.
Factory installed risers are only available as shown in Figure 11, p. 46.
Modification to the factory riser may be required in the field to fit the contractor’s riser schedule.
Riser location and appropriate hose length for ease of service is an important factor during unit installation.
Recommended hose length per riser location includes:
• 2” hose = All riser locations.
Trapping the main condensate riser is recommended but not mandatory as the unit condensate line is trapped internal
to the equipment.
Figure 11. Riser to unit connection
RETURN
SUPPLY
DRAIN
2 1/2" (64)
32" (813)
SUPPLY, RETURN AND DRAIN RISER
CONNECTIONS TO THE UNIT
RISER ARRANGEMENTS
SYSTEM SUPPLY IS FROM THE BOTTOM.
- ALL RISERS ARE CAPPED AT THE CABINET
RUN OUTS.
SYSTEM SUPPLY IS FROM THE TOP OR BOTTOM.
- DRAIN RISER IS CAPPED AT THE CABINET
RUN OUT.
- BOTTOM SUPPLY AND RETURN RISERS
ARE PIPED WITH OPEN TOP FOR VENTING
OR FLUSHING.
- TOP SUPPLY AND RETURN RISERS.
SYSTEM SUPPLY IS FROM THE TOP OR BOTTOM.
- TOP OR BOTTOM SUPPLY AND RETURN
RISERS ARE OPEN AT THE TOP FOR
SUPPLYING WATER TO OTHER UNITS.
- BOTTOM SUPPLY TO UNITS OPEN AT THE
TOP FOR VENTING OR FLUSHING OF THE SYSTEM.
SYSTEM SUPPLY IS FROM THE BOTTOM.
- CAPPED SUPPLY AND RETURN PIPING.
- OPEN DRAIN FOR VENTING TO ROOF
OR CONDENSATE REMOVAL FROM OTHER
EQUIPMENT.
SYSTEM SUPPLY IS FROM THE TOP.
- CAPPED SUPPLY AND RETURN PIPING.
SYSTEM SUPPLY IS FROM THE TOP/BOTTOM.
OR, SYSTEM RETURN IS FROM THE TOP/
BOTTOM.
- SUPPLY OR RETURN CAPPED AT THE
CABINET.
BACK OR RIGHT VIEW SHOWN
IN FIGURE A