Parker ULDC Installation And Servicing Instructions

Installation and Servicing Instructions:
ULDC Air/Oil Cooler

Th

ese instructions should be observed prior to installation of

the PARKER ULDC cooler.

Mounting

The PARKER coolers permit both horizontal and vertical
mounting. The conduit entry of the DC motor must always be
turned downwards. To prevent personal injury, always secure
the cooler adequately. The distance from the nearest
obstruction should not exceed half the height of the cooler
core.

Electrical Connection

PARKER ULDC cooler is supplied with a 12V or 24V DC
motor. Connect the power source to the cooler as illustrated
below. For protection of the motor, always use a relay.

The circuit diagram below should be applied when connecting
a cooler equipped with a switch box.

Hydraulic connection

Connect the cooler as illustrated below using hydraulic hoses
both to and from the cooler. We recommend mounting in a
separate cooling circuit when possible. When this can not be
done, install the cooler in the system return line. Avoid
linking to systems that could cause pressure spikes in excess
of 200 psi. PARKER shall not be held responsible for any
consequences due to modification and/or variation with regard
to connections.

In case
a relay if the current lULDC is greater than:
10 A at 12V DC
5 A at 24V DC

where the cooler is provided with a thermoswitch, use

Prior to Start-Up

 Check cooler core and fan guard for damage.
 Ch

eck that the cooler is provided with a caution label fo

tatio

fan ro

 Check that the

the above. PARKER shall not be held responsible for an
con

n

cooler is correctly connected according to

sequences due to variations.

r

y

15102 Sommermeyer, Suite 125, Houston, Texas, 77041 Tel. [phone] Fax: [phone]

PARKER Accu

mulator & Cooler Division

At Start-Up

Check that the direction of rotation is correct, i.e. that the
eletromotor poles are connected correctly.

Noise Level

Remaining close to the cooler for a extended time may be
annoying. Inappropriate mounting location may generate
increased noise level.

Cleaning the Cooler Core

The easiest method of cleaning the air fins is by using
compressed air. Fouling can be dealt with by using a high­pressure washing system with a degreasing agent. Flush with
water afterwards.

Note: When using a high-pressure was hi n g syst em, be c areful
to align the water jet parallel to the air fins. Additionally, the
cooler core must be cool before cleaning.

Parts List

1. Fan Assembly

2. Cooler core

3. Fan housing
4-6 Fasteners
7-8 Washers

When cleaning the inside of the cooler core, connect the core
to a closed circuit and flush the inside with a degreasing agent.
After cleaning, flush with the same fluid that will be used in
the system.

Miscellaneous

 In the event of breakdown, consult PARKER.
 When handling the cooler, e.g. for cleaning or repair,

disconnect all power supply. Be careful, the cooler may
be hot.

 The fan generates static electricity by air friction. Do not

put sensitive electronic equipment in the immediate
vicinity of the cooler.

 Consult PARKER when using fluids different from

standard hydraulic fluids such as heavy lubricating oils.

 The electromotor may only be connected to the specified

direct current. PARKER shall not be held responsible for
any consequences due to improper connections.

 PARKER shall not be held responsible for any

consequences due to repair or modificati on m a de by the
customer.

15102 Sommermeyer, Suite 125, Houston, Texas, 77041 Tel. [phone] Fax: [phone]

PARKER Accumulator & Cooler Division

15102 Sommermeyer, Suite 125, Houston, Texas, 77041 Tel. [phone] Fax: [phone]

PARKER Accumulator & Cooler Division