Carrier 30HS070 - User Manual

SAFETY CONSIDERATIONS
Installation, start-up and servicing of this equip-
ment can be hazardous due to system pressures,
electrical components and equipment location .
(roofs, elevated structures, etc.).
Only trained, qualifal installers and service;,-
mechanics should install, start-up and service ,thif
equipment.
When working on the equipment, observe pre-
cautions in the literature, tags, stickers and labels
attached to the equipment and :to any other safety
precautions 'that apply.
•
Follow all safety codes.
•
Wear safety glasses and work gloves.
Carrier Parkway ! _S
yracuse, N.Y. 13221
-Reciprocating
 uid Chillers
For Model D Univ
-. All 208/230 Volt Units Have EXte
All Units Have Suction-Cutoff Unloading SysteM
S070-160
oltage Compressor Motors
Floor must be strong engh,to support oper-
ating weight (see Table 1). If necessary, add sup-
mrting structure (steel beams or reinforced concrete
to floor to transfer weight to nearest beams.
Figure 1 shows location of 6 mounting holes.
•
Each point supports approximately 1/ 6 of the
operating weight.
Do not remove unit from skid until it is in final
location. Rig from the 2-in. diam holes in the cooler
end flanges. Lower carefully onto floor or rollers.
Push or pull only on the skid, not the unit. If the
unit is moved on rollers, use a minimum of 3,
evenly spaced.
Areas where corners will be located must be level
*before unit is placed. Level unit with spirit level on
frame channels. Bolt to floor (recommended for
basement or ground floor installations that transmit
vibration to ground without affecting building
structure).
All compressors have mufflers and are attached
rigidly on top of rails mounted on spring vibration _
isolators. Remove rail mounting bolts so rails float_
freely on springs.
If bolts are not removed, they
may retighten from vibration during operation.
Interconnecting piping must be flexible enough
to prevent vibration transmission. If vibration still
occurs, use isolators on unit. If installation is on
upper ,
floor where vibration cannot be transmitted
to the ground, use field-purchased isolator springs
under each unit mounting hole.
•
Use care in handling, rigging and setting bulky
equipment.
INSTALLATION
LOCATION
Do not store -u s in an area exposed to weather
because of sensitive control mechanisms and elec-
trical ileviCes. Loate unit 'inders.
See Fig. 1 for door' clearance. Allow following
▪ clearances for service access.
Front

3 to 4 ft
Rear 
2 ft
Ends 
tube removal at one (either) end,
see Fig. 1; 2 ft at opposite end.
Carrier Corporation 1981
CONDENSER
Run water supply lines as short as possible. Size
lines according to head pressure available (not
necessarily connection size), especially on cooling
tower applications. See Carrier System Design
Manual, Part 3, Piping Design:
For installations requiring a water regulating
valve, a separate valve is required (not supplied by
Carrier) for each.circuit. Water bypass valves must
be installed on cooling tower applications where
low outdoor ambients affect head pressure.
The 30HS units using air-cooled or evaporative
condensers should have adequate means for head
pressure control' when operating below 60 F out-
door ambient.
Accessory water manifold packages are available
to manifold 2 condensers on 30HR070-140 units.
Connections are shown in Fig. 1. Each package
Form 30HR.HS-22S1

Summary

Installation, Start-Up and Service Instructions

SAFETY CONSIDERATIONS

Important safety precautions for installation, start-up, and servicing of equipment.

INSTALLATION

Details on locating and installing the unit, including clearance and mounting.

LOCATION

Guidelines for selecting a suitable indoor location and required clearances for service access.

CONDENSER

Information on condenser water supply lines, sizing, and head pressure control.

START-UP AND SERVICE

INITIAL CHECK

Essential pre-start checks for electrical connections, auxiliary components, and safety devices.

CHECK VALVES

Instructions for field installation of check valves in refrigerant discharge piping.

FLOW SWITCHES

Details on the factory-provided flow switch and its field installation.

LEAK TEST AND DEHYDRATION

REFRIGERANT CHARGING

Guidelines for charging refrigerant systems, including liquid charging methods and precautions.

OIL CHARGE

Information on factory oil charge and procedures for checking and adding oil.

Restart Procedure

Carrier 30HS070 Specifications

General

Cooling Capacity	70 tons
Compressor Type	Scroll
Refrigerant	R-410A
Voltage	460 V
Power Supply	460V/3/60Hz