Ebac RM4500 User Manual

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

RM4500

INDUSTRIAL DEHUMIDIFIER

OWNER’S MANUAL

www.eipl.co.uk

Page 1 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

RM4500

PACKAGE CONTENTS

Item Description Quantity

10570RG-US Dehumidifier 1

3086144 Quick release hose coupling 1

3944110 PVC Tube – 3/8” I/D 7.8M

TPC427 Manual 1

Page 2 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

INTRODUCTION

Designed for a wide range of applications, the RM4500 is a rugged, industrial
unit, which utilizes an energy-efficient compressor and a compact portable
design to provide easy efficient drying.

The RM4500 has a number of special features:

•

High efficiency rotary compressor

•

EIPL’s “Hot Gas” defrost system

•

Hours run meter

•

Integral pump out system

•

Provision for permanent drainage

•

Extra long power cord

•

Robust rotational moulded polyethylene housing

The fan draws the moist air through the cold evaporator coil, which cools the
air below its dew point. Moisture forms on the evaporator coil and is collected
in the condensate tray, which is equipped with a permanent drain. The cooled
air then passes through the hot condenser coil where it is reheated using the
same energy removed during the cooling phase, plus the additional heat
generated by the compressor. The air is, therefore, discharged from the
dehumidifier at a slightly higher temperature with a lower absolute humidity
than that which entered. Continuous circulation of air through the
dehumidifier gradually reduces the relative humidity within the area.

The RM4500 dehumidifier is a rugged, reliable drying unit designed to operate
effectively over a broad range of temperature and humidity conditions. An
active hot gas defrost system, controlled by an electronic timer, guarantees
positive de-icing, thereby optimizing operation at low temperatures.

The unit incorporates a rotational moulded polyethylene shell resilient to
damage caused by rough handling.

This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety. Children should
be supervised to ensure that they do not play with the appliance.

If the SUPPLY CORD is damaged, it must be replaced by the manufacturer,
its service agent or similarly qualified person in order to avoid hazard.

Page 3 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

SPECIFICATIONS

P

OWER SUPPLY

O

PERATING RANGE

R

"This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. The

refrigeration system is hermetically sealed.

The Global Warming Potential (GWP) of refrigerants used in products manufactured by Ebac

For type and weight of refrigerant contained in this unit, please refer to the product data label"

M

ODEL

: 10570RG-US

H

EIGHT

: 44” (1115mm)

W

IDTH

: 25” (625mm)

D

EPTH

: 28” (710mm)

W

EIGHT

: 170 lbs (77 Kg)

A

IRFLOW

: 350 CFM (600 M3/hr)

: 110V/ 60Hz/ 1 ph

F

INISH

Rotational Moulded

:

polyethylene

: 33°F – 95°F

EFRIGERANT

: R-407c (22.9 oz)

Industrial Products Ltd is as follows

R134a – 1300
R407c – 1610

Page 4 of 12

Drawing : - TPC427

CAUTION:

DO NOT REMOVE COVERS WHEN U

NIT IS IN OPERATION

CAUTION:

Issue : - 2
Date : - 26/08/15

OPERATION

The following procedures should be followed to test the RM4500 for correct
operation:

1. After unpacking, examine all external features to confirm damage­free shipment. Report all defects and damage at once. Connect the
power cable to a grounded 15 Amp electrical outlet.

2. Check dehumidification process as follows:

A. Place unit on a level surface.
B. Start up unit by switching to “I”.
C. Check that the compressor is running.
D. Leave the machine running for 15 minutes.
E. Observe the evaporator coils through the front grille, to confirm

frost formation.

i. If the air temperature is below 78°F, an even coating of frost

should cover the entire evaporator coil.

ii. If the air temperature is above 78°F, frost and/or droplets of

condensed water should cover the entire evaporator coil.

F. When the unit is operated in ambient of less than 59°F, a

defrost cycle should occur approximately 20 mins. The exact
time is impossible to predict as the unit is fitted with a
temperature sensitive defrost control.

If, after carrying out the above procedures, the unit does not appear to

function properly, refer to the Trouble Shooting section, which follows,

or contact the Factory Service Center.

After using the RM4500, turn it off for five minutes to allow the condensate on
the coils to drain into the pump reservoir, then press the momentary pump
purge switch for twenty to thirty seconds to evacuate the water from the pump
reservoir.

ONCE THE UNIT HAS BEEN SWITCHED OFF, WAIT AT

LEAST FIVE MINUTES BEFORE RESTARTING.

Page 5 of 12

Drawing : - TPC427

WARNING:

WAR

NING:

Issue : - 2
Date : - 26/08/15

ROUTINE MAINTENANCE

ENSURE THAT THE POWER CORD TO THE MACHINE HAS BEEN

To ensure continued full efficiency of the dehumidifier, maintenance
procedures should be performed as follows:

1. Clean the surface of the evaporator and condenser coils by blowing the

2. Check that the fan rotates freely. The fan motor is sealed for life and

3. To check the refrigerant charge remove the front cover, run the unit for

4. Check all wiring connections.

5. In order to check the defrost operation, the unit needs to be operated in

S

DISCONNECTED BEFORE CARRYING OUT ROUTINE

MAINTNENANCE ON ITEMS 1, 2, 3, 4 & 5

dirt out from behind the fins with compressed air. Hold the nozzle of the
air hose away from the coil to avoid damaging the fins. Alternatively,
vacuum clean the coils.

DO NOT STEAM CLEAN REFRIGERATION COILS

therefore does not need oiling.

15 minutes and observe the evaporator coil. It should be evenly frost
coated across its surface. At temperatures above 78°F, the coil may be
covered with droplets of water rather than frost. Partial frosting
accompanied by frosting of the thin capillary tubes, indicates loss of
refrigerant gas or low charge.

an ambient temperature of less than 59°F for at least 1 hour. When
operated In this condition the unit should defrost at least once 20 mins.
The defrost mode can be monitored by observing the ice melting on the
coil face, prior to defrost the face will show a white coating of frost, which
should clear during defrost

I

F ANY OF THE PRECEDING PROBLEMS OCCUR, CONTACT THE EBAC

ERVICE CENTER PRIOR TO CONTINUED OPERATION OF THE UNIT TO

PREVENT PERMANENT DAMAGE.

Page 6 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

REPAIRS

1. Should an electrical component fail, consult the Factory Service
Center to obtain the proper replacement part.

2. If refrigerant gas is lost from the machine, it will be necessary to use
a refrigeration technician to correct the fault. Contact the Factory
Service Center prior to initiating this action.

Any competent refrigeration technician will be able to service the

equipment. The following procedure must be used:

a. The source of the leak must be determined and corrected.

b. The machine should be thoroughly evacuated before

recharging.

c. The unit must be recharged with refrigerant measured

accurately by weight.

d. For evacuation and recharging of the machine, use the crimped

and brazed charging stub attached to the side of the internal
pipework.

The charging stub should be crimped and rebrazed after

servicing. N
any part of the circuit. Service valves may leak causing further
loss of refrigerant gas.

3. The refrigerant compressor fitted to the dehumidifier is a durable
unit that should give many years of service. Compressor failure can
result from the machine losing its refrigerant gas. The compressor
can be replaced by a competent refrigeration technician.

Failure of the compressor can be confirmed by the following

procedure:

a. Establish that power is present at the compressor terminals

using a voltmeter.

b. With the power disconnected, check the continuity of the internal

winding by using meter across the compressor terminals. An
open circuit indicates that the compressor should be replaced.

c. Check that the compressor is not grounded by establishing that

a circuit does not exist between the compressor terminals and
the shell of the compressor.

EVER

allow permanent service valves to be fitted to

Page 7 of 12

S

C

R

TROUBLESHOOTING

YMPTOM

Unit inoperative 1. No power to unit

1. Fan motor burnt out

Little or no airflow

2. Dirty refrigeration coils

3. Loose electrical wiring

1. Insufficient air flow

Little or no water
extraction

2. Compressor fault

3. Loss of refrigerant gas

Little or no defrost
when required

Unit vibrates
excessively

Water flooding inside
the machine

1. Faulty timer

2. Faulty reversing valve

1. Loose compressor

2. Damaged fan

1. Drain pipe blocked/frozen

2. Drain pipe too high

3. Crimped or blocked tubing

AUSE

Spare parts available online

www.EIPLDIRECT.com

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

EMEDY

1. Check the power from
power supply panel

1. Replace the fan motor

2. See Routine Maintenance
Section

3. Check the wiring diagram
to find fault and repair

1. Check all of the above

2. Contact the Factory
Service Center

3. Contact the Factory
Service Center

1. Contact the Factory
Service Center

2. Contact the Factory
Service Center

1. Tighten the nuts on the
compressor mounts

2. Replace fan

1. Clear the obstruction

2. Ensure that no section of
the drain hose is above the
level of the water outlet

3. Straighten, clear, or replace
tubing

Page 8 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

RM4500

SPARE PARTS LIST

P

ART

N

UMBER

1 Timer 1619508 1
2 Condenser coil 2057025 1
3 Evaporator coil 2057024 1
4 Filter 2057031 1
5 Capillary 3014249 2 X 30”
6 Solenoid valve 3020833 1
7 Filter dryer 3020957 1
8 Compressor 3944938 1
9 Solenoid coil 3030453 1

10 Hour meter 3030779 1
11 Run capacitor 3036354 1
12 On/Off switch 3035924 1
13 Power Relay 3036157 1
14 Pump purge switch 3036779 1
15 Fan 3040281 1
16 Fan inlet ring 2057003 1
17 Duct attachment 2057004 1
18 Grille 2057005 1
19 Wheel 3050124 2
20 Condensate pump 3160155 1
21 Heat Exchanger 1057002 1

D

ESCRIPTION

N

UMBER

Q

UANTITY

Page 9 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

Page 10 of 12

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

Page 11 of 12

UK Head Office

American Sales Office

German Sales Office

Ebac Industrial Products Ltd

St Helens Trading Estate

Bishop Auckland

County Durham

DL14 9AD

Tel: [phone]

Fax: [phone]

www.eipl.co.uk

[e-mail]

Ebac Industrial Products Inc

700 Thimble Shoals Blvd.
Suite 109, Newport News

Virginia, 23606-2575

USA

Tel: [phone]

Fax: [phone]

www.ebacusa.com

[e-mail]

Drawing : - TPC427
Issue : - 2
Date : - 26/08/15

Ebac Industrial Products Ltd.

Gartenfelder Str. 29-37

Gebäude 35

D-13599, Berlin

Germany

Tel: [phone]

Fax: [phone]

www.eip-ltd.de

[e-mail]

Page 12 of 12