JOHNSON CONTROLS
20
FORM 160.81-NOM1
ISSUE DATE: 10/3/2020
SECTION 1 – INSTALLATION
SHIPPING FORM 2, 3, 7, AND 8
This instruction explains the procedure to be used for
reassembling the Model YR Rotary Screw Chiller
shipped disassembled. (Shipping Form 3, 7, and 8.)
Units MUST be field reassembled under
the supervision of a Johnson Controls
service representative.
FORMS OF SHIPMENT
FORM 2 – FACTORY ASSEMBLED (STANDARD)
–
Unit completely assembled except not charged with
oil or refrigerant. Standard oil shipped separately. Re-
frigerant shipped separately in 50 and 125 lb (23 and 57
kg) cylinders. Shipped with holding charge of nitrogen.
FORM 3 – DRIVELINE SEPARATE FROM
SHELLS –
Shipped as three major assemblies. The
unit is first factory assembled, refrigerant piped, wired
and leak tested, then dismantled for shipment. Com-
pressor/open motor assembly is removed from shells
and skidded. Evaporator/condenser assembly is not
skidded. Oil separator is skidded.
All wiring integral with the compressor is shipped on
the compressor, and all conduit is shipped on the heat
exchanger. All openings on the compressor, oil separa-
tor, and the shell are closed and charged with dry nitro-
gen [5 psig (34 kPa)].
Miscellaneous chiller components, [control center,
oil eductor filter, tubing, water temperature controls,
wiring, oil, vibration isolators, solid state starter (op-
tion), etc.] are packaged separately and shipped with
the chiller. R-134a charge is shipped concurrently or
separately in 50 lb. and 125 lb (23 and 57 kg) cylinders.
FORM 7 – SPLIT SHELLS –
The unit is shipped
as four major assemblies (evaporator, condenser, mo-
tor/compressor assembly and oil separator). The unit
is first factory assembled, refrigerant piped, wired and
leak tested, then dismantled for shipment. Compres-
sor /open motor assembly is removed from shells and
skidded. Oil separator is skidded.
Evaporator and condenser shells are separated at tube
sheets and are not skidded. Refrigerant lines between
shells are flanged and capped. Tube sheets will require
bolting in the field. No welding is required.
All wiring integral with compressor is shipped on it.
All wiring harnesses on shells are removed.
OIL SEPARATOR
FIGURE 7 -
MODEL YR – FRONT VIEW OF ASSEMBLED UNIT
00562VIP
EVAPORATOR
SIGHT GLASS
CONDENSER
GRAPHIC
CONTROL CENTER
