Ingersoll-Rand XHP900CM, Руководство по эксплуатации, техническому обслуживанию и каталог запасных частей

Страница: 19 / 77

Manual No. 54771142 (7/01) (
19
) 07/18/01
Receiver separator Discharge Piping
The receiver separator discharge piping must be furnished by the customer. Refer to the appropriate
separator fitting location for a typical piping arrangement for these units. A minimum pressure valve and a
manual shut-off valve is supplied with each unit and must be piped into the customer’s system as
indicated. The minimum pressure valve is supplied to maintain approximately 125 psig (862 kPa) in the air
receiver tank to ensure proper oil circulation and also to prevent excessive oil carryover into the customer’s
air service system. The manual shut-off valve must be installed between the minimum pressure valve and
the customer’s air service system to serve as an isolation valve.
In addition, whenever this unit is connected to a high volume customer’s service air system, a terminal
check valve must also be installed downstream of the minimum pressure valve and the isolation valve to
prevent air from the system from bleeding back into the compressor system on shutdown.
Wiring
The compressor is protected against overheating by a thermal-type discharge air temperature switch
located in the compressor discharge piping. A “normally-closed” type thermal switch, factory set at 248
°
F
(120 ° C), is supplied as standard equipment on these units. This switch is supplied for 12/24 volt DC. As
an option, this switch may be supplied for 125 volt AC. A thermal sensor switch, also set at 248
°
F (120
°
C),
normally closed, is provided as extra protection in the receiver separator. It is to be wired in series with the
airend temperature switch by the user and then into the end user’s shutdown system. The end user’s
system must be capable of initiating shutdown of the driver engine within 3-5 seconds of opening of either
of the shutdown switches. This switch is supplied for 12/24 volts DC, with optional AC switches available
as an option.
Driver
The installation of a CM Series Compressor with any drive such as a power take-off drive or a hydraulic
motor drive is very flexible. The proper rotation of the compressor is clockwise when viewed from the
driver end.
NOTE
Because the compressor is of the axial
screw type, the rotation cannot be changed.
MODEL CAPACITY TORQUE REQUIRED POWER REQUIRED INPUT
CFM M
3
/MIN. POUND - FEET N
.
M BHP KILOWATTS RPM
XHP900 900 25.4 1152 1563 395 294 1800
Note: Power requirements include fan.
A drive shaft from the source of power take-off is used to drive the compressor. It is extremely important
that the angularity of the drive shaft, including the universal joints, be within the limits specified by the
manufacturer. The power take-off shaft and the compressor rotor drive shaft must always be parallel.
This gives the same angle at each universal joint and prevents excessive wear. The forks of the universal
joint on the drive end must be installed parallel to the forks on the driven end universal. There are many
types of universal joints that can be used. However, a constant velocity universal joint as previously
described will reduce the possibility of torsional vibration. If a slip joint or spline is used on the drive
system, it should be placed between the two universal joints for best results.
It is NOT permissible to directly belt drive this unit, or use any configuration of drive that puts side
load on the compressor drive shaft. Belt or other side loads must be supported by external
bearings.