Carrier 50BK - Manual (Page 11)

Fig. 13 50BJ024 City Water Condenser
Piping Conversion
1X1-
i|HXl-RETURN
CONNECT TO»rn
COMPRESSOR y
{X1-— d J o —
CONNECT WATER REGULATING
VALVE TO COMPRESSOR
^^STRAINER
------l||-C]— SUPPLY
D istrainer
-Cxi-
HXh
Nominal supply and return lines must be sized to provide required
gallons per minute at condenser All supply piping and valves are
2 in Return piping is 3 in Condensate drain is 1
'/2 in FPT Afield-
supplied and installed external trap is required
Fig. 16 — 50BJ,BK044,045 & 064
Condenser Water Piping
Fig. 14 — 50BJ024 Typical Waste or
City Water Piping
Install a water regulating valve on the inlet of each
condenser with any size unit used on waste or city
water (Fig. 14, 15 and 16).
Connect the regulating valve capillary to a back-
seated liquid service valve. Arrow on valve body
must point in direction of water flow. After con­
necting capillary, open regulating valve one turn
from back-seated position. Adjust valve as required
to maintain proper condensing temperature.
Install full size gate valve and strainer in the water
supply line. See maximum working pressures in
Table 3. Valve and strainer must be accessible.
Table 3 — Maximum Water-Side
Working Pressure
UNIT SIZE 50BJ.BK
MAXIMUM WORKING
PRESSURE (psig)
016 550
024 150*
028,034 550
044,054,064 400
*550 psig if factory-installed dresser adapters are removed and
field-fabricated manifold is installed
AIR-COOLED (50BK units) — Install air-cooled
condenser in accordance with the Installation
Instructions shipped with condenser.
Consult Carrier System Design Manual for
standard refrigerant piping techniques. Connection
locations for liquid and hot gas service lines are
shown in Fig. 12. Recommended line sizes are
listed in Table 4.
Condenserless (50BK) units are shipped with a
holding charge. After refrigerant connections are
made, evacuate, leak test and charge the system as
described in the Service section entitled Charging
the System. Refer to Table 1 for approximate unit
charge.
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