JOHNSON CONTROLS
FORM 150.26-EG1 (116)
12
Differential Pressure Switch
- An alternative option to the paddle-type flow switch. 3-45
PSIG (0.2-3 bar) range with ¼” NPTE pressure connections. (
Field Mounted
)
Pressure Vessel Codes
- Evaporators and condensers are be supplied (Standard) in con-
formance with the A.S.M.E. pres sure codes.
Flanges (ANSI/AWWA C-606 Couplings Type)
– consists of flange adapters for grooved
end pipe on evaporator and condenser (note: the 0064HE and 0094SE units do not
include evaporator flanges, and the 0056SE, 0064SE, and 0074SE units do not include
condenser flanges). Standard 150 psi (10.3 bar).
(Field-mounted, matching pipe
flange by contractor).
Double Thick Insulation
– Double Thick (1-1/2”) insulation provided on the evaporator.
CHILLER OPTIONS
Final Paint Overspray
- Overspray painting of unit after assembly.
(Factory Paint)
Service Isolation Valve
- Service suction isolation valve added to unit per system in addi-
tion to the standard discharge service valve.
Hot Gas By-Pass
– Permits continuous, stable operation at capacities below the mini-
mum step of compressor unloading to as low as 5% capacity (depending on both the unit
and operating conditions) by introducing an artificial load on the evaporator. Hot gas by-
pass is installed on only refrigerant system #2 on two-circuited units.
Chicago Code Relief Valves
– Unit will be provided with relief valves to meet Chicago code
requirements.
Compressor Acoustic Sound Blanket
– Each compressor is individually enclosed by
an acoustic sound blanket. The sound blankets are made with one layer of acoustical
absorbent textile fiber of 5/8” (15mm) thickness; one layer of anti-vibrating heavy mate-
rial thickness of 1/8” (3mm). Both are closed by two sheets of welded PVC, reinforced for
temperature and UV resistance.
Non Reversing Heat Pump
– Unit configured for optional operating mode controlled by
leaving condenser water temperature. Temperature setpoint user adjustable from 86°F –
122°F (30°C – 50°C), default 122°F (50°C). While operating in this mode, chiller will stage
compressors to maintain heating setpoint provided there is sufficient cooling demand.
Unit can be changed from heat pump to chiller mode locally or through BAS. Unit leav-
ing evaporator water temperature will float based on heating output while in this mode,
making this option ideal for applications that do not require a constant evaporator leaving
temperature or for multiple (series) chiller installations. Option requires factory startup
and adds one day startup labor for field configuration. Requires evaporator leaving tem-
perature above 40°F (4°C) while heat pump is in operation.
Accessories and Options (Cont'd)
Содержание YCWL 0056SE
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