Ebac RM40-SH User manual

Page 1 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
RM40-SH
INDUSTRIAL DEHUMIDIFIER
OWNER’S MANUAL
E B A C R M 4 0 S H O W N E R ' S M A N U A L
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Page 2 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
RM40-SH
PACKAGE CONTENTS
Item Description Quantity
10187SH-US Dehumidifier 1
3014338 PVC tube – 12mm I/D 3 M
3086101 Jubilee clip 1
TPC519 Manual 1
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Page 3 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
UNPACKING
Carefully remove the RM40-SH dehumidifier unit from its transit box and
visually check for signs of transit damage. If there is evidence of damage DO
NOT attempt to operate the unit, call your supplier for advice. Do not discard
the packing; it will be useful when transporting the dehumidifier unit in the
future.
INTRODUCTION
The RM40-SH industrial dehumidifier removes moisture from the air through
the refrigeration process.
The RM40-SH is basically comprised of:
A) A compressor
B) A refrigerant evaporator coil
C) A refrigerant condenser coil
D) One circulation fan
E) A drain tray for collecting and disposing of condensed moisture
F) A solid state timer for hot gas defrost cycle
G) An adjustable membrane-type humidistat
H) A cabinet to house the above components
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 RM40-SH dehumidifier is a rugged reliable drying unit designed to
operate effectively over a broad range of temperature and humidity conditions.
A powerful and reliable active hot gas defrost system, controlled by an
electronic timer, guarantees positive de-icing, thereby optimizing operation at
low temperatures.
The unit incorporates a welded steel chassis and is finished in an epoxy
coating for resilience to damage caused by rough handling.
The RM40-SH dehumidifier is fitted with an adjustable humidistat to enable
you to select the level of dryness.
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Page 4 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
SPECIFICATIONS
"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
Industrial Products Ltd is as follows
R134a – 1300
R407c – 1610
For type and weight of refrigerant contained in this unit, please refer to the product data label"
MODEL:RM40-SH
HEIGHT:11.8” (300mm)
WIDTH:13” (330mm)
DEPTH:21.7” (550mm)
WEIGHT:50 lbs
AIRFLOW:129 CFM (220M3/hr)
MAX OPERATING TEMP:95ºF
POWER SUPPLY:110V, 60Hz
REFRIGERANT TYPE:R410a
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Page 5 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
OPERATION
The operation of the dehumidifier is to remove moisture from the air by having
it condense on the cold tubes of the evaporator coil. The air then passes over
the hot condenser coil and returns to the conditioned space slightly warmer
and dryer than when it entered the dehumidifier unit.
TEST FOR CORRECT OPERATION
The following procedures should be followed to test the RM40-SH for correct
operation.
1. After unpacking, examine all external features to confirm damage free
shipment. Report all defects and damage at once.
2. Check dehumidification process:
a) Place unit on a level surface. Connect a suitably sized hose to
the condensate outlet and run the hose to a permanent drain.
b) Start up unit by rotating the adjustable humidistat knob counter
clockwise to the minimum setting. Plug in the unit to a grounded
receptacle with a 15 amp power source. Rotate the humidistat
knob clockwise to the maximum setting.
c) Check the compressor is running.
d) Leave the machine running for 15 minutes.
e) Observe the evaporator coils, to confirm frost formation.
i. If the air temperature is below 70ºF, an even coating of
frost should cover the entire evaporator coils, except for
the last one or two coils.
ii. If the temperature is above 70ºF, frost and/or droplets of
condensed water should cover the entire evaporator coil.
If after carrying out all the above checks, the unit does not appear to function
correctly refer to the section, “Trouble Shooting”, or contact your supplier.
WARNING:
Due to the high pressures within the refrigeration circuit, under no
circumstances must direct heat be applied to the evaporator coil in an
attempt to remove the build up of ice.
No attempt should be made to cut open any part of the refrigeration circuit
due to high pressures and gas involved. If the unit is switched off at the
mains power supply for any reason, the unit must be allowed to stand at
rest for at least three minutes before restarting. Failure to do so may cause
the unit to blow the fuses owing to the compressor due to there being a
refrigerant imbalance.
Humidistat
This humidistat operates to control the on/off function of the dehumidifier unit
as required.
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Page 6 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
ROUTINE SERVICE
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 dirt out from behind the fins with compressed air. Hold the
nozzle of the air hose away from the coil (approx 6”) to avoid
damaging the fins. Alternatively, vacuum clean the coils.
2. Check that the fan is firmly secured to the motor shaft and that the
fan rotates freely. The fan motor is sealed for life and therefore
does not need oiling.
3. To check the refrigerant charge, run the unit for 15 minutes and
briefly remove the cover. The evaporator coil should be evenly frost
coated across its surface. At temperatures above 25C, 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.
4. Check all wiring connections.
5. When the unit is operated in ambient of less than 15°C, a defrost
cycle should occur approximately every hour. The exact time is
impossible to predict as the unit is fitted with a temperature sensitive
defrost control.
IF ANY OF THE PRECEDING PROBLEMS OCCUR, CONTACT THE EBAC
SERVICE CENTER PRIOR TO CONTINUED OPERATION OF THE UNIT TO
PREVENT PERMANENT DAMAGE.
WARNING:
ENSURE THAT THE POWER CORD TO THE MACHINE HAS
BEEN DISCONNECTED BEFORE CARRYING OUT ROUTINE
SERVICE. THE SERVICING AND REPAIR OF THIS UNIT
SHOULD ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED
PERSON.
WARNING:
DO NOT STEAM CLEAN REFRIGERATION COILS
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Page 7 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
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 refrigerant
compressor.
The charging stub should be crimped and rebrazed after
servicing. NEVER allow permanent service valves to be fitted to
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.
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Page 8 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
TROUBLESHOOTING
SYMPTOM CAUSE REMEDY
Unit inoperative 1. No power to unit 1. Check the power from the
power supply panel.
Little or no airflow
1. Loose fan on shaft
2. Fan motor burnt out
3. Dirty refrigeration coils
4. Loose electrical wiring
1. Tighten fan
2. Replace the fan motor
3. See Routine Maintenance
Section
4. Check the wiring diagram
to find fault and repair
Little or no water
extraction
1. Insufficient air flow
2. Compressor fault
3. Loss of refrigerant gas
4. Blocked filter dryer
1. Check all of the above
2. Contact the Factory
Service Center
3. Contact the Factory
Service Center
4. Contact the Factory
Service Center
Little or no defrost
when required
1. Faulty Timer
2. Faulty bypass timer
1. Contact the Factory
Service Center
2. Contact the Factory
Service Center
Unit vibrates
excessively
1. Loose compressor
mounts
2. Damaged fan
1. Tighten the nuts on the
compressor mounts
2. Replace fan
Water flooding inside
the machine
1. Drain pipe blocked/frozen
2. Drain pipe too high
1. Clear the obstruction
2. No section of the drainage
hose should be above the
level of the water outlet
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Page 9 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
RM40-SH
SPARE PARTS LIST
NUMBER DESCRIPTION PART
NUMBER QUANTITY
1 Timer 1619519 1
2 Refrigerant Coil Set 2018743 1
3 Capillary 3014254 1.64ft
4 Solenoid valve 3020836 1
5 Filter dryer 3020937 1
6 Solenoid coil 3030451 1
7 Fan Motor 3947012 1
8 Fan Blade 3947014 1
9 Compressor 3944954 1
10 Humidistat 3035158 1
11 Mains Cable 2141095 1
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Page 10 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
WARNINGS
This appliance can be used by children from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
use of the application in a safe way and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without
supervision.
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.
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 Industrial Products Ltd is as follows
R134a – 1300
R407c – 1610
For type and weight of refrigerant contained in this unit, please refer to the
product data label
Due to the high pressures within the refrigeration circuit, under no
circumstances must direct heat be applied to the evaporator coil in an attempt
to remove the build-up of ice.
No attempt should be made to cut open any part of the refrigeration circuit due
to high pressures and gas involved.
If the unit is switched off at the mains power supply for any reason, the unit
must be allowed to stand at rest for at least three minutes before restarting.
For correct installation and operation the unit inlet and outlet must have a
clearance of 0.5M from all adjacent surfaces and or structures.
E B A C R M 4 0 S H O W N E R ' S M A N U A L
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Page 11 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
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Page 12 of 12
Drawing : - TPC519
Issue : - 1
Date : - 03/03//20
Distributed by:
Pure n Natural Systems, Inc.
PO Box 1137
Streamwood, IL 60107
purennatural.com | 1-800-237-9199 | FAX# [phone]
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