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FORM 201.26-NM1
ISSUE DATE: 1/19/2018
Chiller Options
Final Paint Overspray
Overspray painting of unit after assembly. (Factory-
Mounted)
Service Isolation Valve
Service suction isolation valve added to unit per sys-
tem in addition to the standard discharge service valve.
(Factory Mounted)
Hot Gas By-pass
Permits continuous, stable operation at capacities below
the minimum 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 evapo-
rator. Hot gas by-pass is installed on only refrigerant sys-
tem #2 on two-circuited units. (Factory-Mounted)
Chicago Code Relief Valves
Unit will be provided with relief valves to meet Chicago
code requirements. (Factory-Mounted)
Compressor Acoustic Sound Blanket
Each compressor is individually enclosed by an acous-
tic 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 material
thickness of 1/8" (3mm). Both are closed by two sheets
of welded PVC, reinforced for temperature and UV resis-
tance. (Factory- Mounted)
Non Reversing Heat Pump
Unit configured for optional operating mode controlled
by leaving condenser water temperature. Temperature
setpoint user adjust from 86°F to 122°F (30°C to 50°C),
JOHNSON CONTROLS
SECTION 2 – PRODUCT DESCRIPTION
default 122°F (50°C). While operating in this mode,
chiller will stage compressors to maintain heating set-
point provided there is sufficient cooling demand. Unit
can be changed from heat pump to chiller mode locally
or through BAS. Unit leaving evaporator water tem-
perature 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 install Option requires factory
startup and adds one day startup labor for field configu-
ration. Requires evaporator leaving temperature above
40°F (4°C) while heat pump is in operation. (Factory-
Mounted)
Vibration Isolation
Elastometric Isolation
Recommended for normal in stallations. Provides very
good performance in most applications for the least cost.
(Field-mounted)
1" Spring Isolators
Level adjustable, spring and cage type isolators for
mounting under the unit base rails. 1" nominal deflection
may vary slightly by ap plication. (Field -Mounted)
2" Seismic Isolators
Restrained Spring-flex Mount ings incorporate a rugged
welded steel housing with vertical and horizontal limit
stops. Housings designed to withstand a minimum 1.0g
accelerated force in all directions to 2". Level adjust-
able, deflection may vary slightly by application. (Field-
Mounted)
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