Global Industrial 246704 User Manual

Control Panel

Water Hose
Connector

Handle

Power Cord
and Water
Hose Wrap

Technical Specification

AHAM Rated,

Capacity

130 pints/day

90°F / 90% RH

Capacity

250 pints/day

Power Supply:

115V/60Hz,

1040W/9A

Refrigerant:

R410A/48oz

Working

Temperature:

41°F~95°F

Controls

Electronic
Touchpad

Air Flow

L-430CFM

H-500CFM

Unit Size(inch ):

20.8x22.4x37.8

Packing Size(inch):

22.8x22.8x41.3

Net/Gross Weight

121/134

Stackable

Yes

Logo Label

Please read all

instructions before using

WARNING

Control panel

Filter

Air Intake
Metal Grill

Water Hose

Air Outlet

Wheel

Rating
Label

Part list

Circuit Diagram

Power Cord

SAVE FOR FUTURE

REFERENCE

LGR Dehumidifier Low-Grain Refrigerant

250 Pints Per Day Water Pump Model 246704

IMPORTANT INSTRUCTIONS

Note: When using electrical appliances, please follow these basic precautions to reduce
the risk of fire, electric shock, and/or injury/damage to persons or property.

All refrigeration products contain refrigerants, which under federal law must be
removed prior to disposal. If disposing an old unit, verify with a qualified disposal
company for instructions.

1 Operate the unit from a power source of equal voltage, frequency, and rating as indicated

on the product identification plate.

2 Extreme caution and supervision is necessary when unit is used near children or pets and

when the unit is left operating while unattended.

3 Do not operate the unit if the cord/plug is damaged or has been dropped or damaged in

any manner.

4 Do not obstruct the inlet or outlet openings. Do not operate in close proximity to walls,

curtains, or other objects that can block the inlet or outlet openings.
5 This unit must be plugged into grounded outlet.
6 To reduce the risk of electric shock, do not expose unit or power cord to moisture.
7 Always turn off and unplug the unit prior to performing routine maintenance, or when not in

use.
8 The use of attachments or accessories not recommended or intended for this unit may

cause personal injury and/or property damage.
9 This product is intended for normal commercial use only.
10 Do not attempt to dismantle the appliance.
11 Do not operate unit on a metal surface.
12 Do not clean the appliance with any chemicals.
13 This unit is not intended for hazardous locations.

- 1 -

Proper Drainage

This dehumidifier contains a built-in pump that
connects to a draining hose in the back of the unit.

1. Ensure that external water does not create a
slipping hazard.

2. To avoid pump damage or overuse, do not
exceed 10 foot vertical lift between the pump
and drain.

Press the “ON/OFF” keys to turn the
Dehumidifier ON. The screen will display main menu:

SH-setting humidity; AH- ambient humidity
TMP-Temperature; JOB-This running/job time

1.Press to switch the temperature to Fahrenheit.

2.Hold menu keys for 10s, it will lock all button.
The lock icon will show on the main menu.
Hold menu keys again for 10s, it will unlock all buttons.

Press the “ON/OFF” keys to turn the unit OFF.
When the unit turns OFF, the water pump will run for 40
seconds to drain the residual condensate water in the
dehumidifier. The screen will display: Draining……

The factory setting is continuous dehumidifier mode.
Press up or down to set the desired humidity
level.
Increment settings are in increments of 5%.
Humidity setting ranges between CO, 20% - 95%.

1. When the adjusting humidity is between 20% and
95%, the unit will stop working while reaching the
Set humidity. The fan will run every 30 minutes
for 1 minute to sense humidity level. The unit will
resume operation when humidity level is higher
than set humidity level.

2. When the adjust humidity is below 20%, “CO” will
be displayed. The unit will enter continuous
dehumidifying mode .

10 FT. MAXIMUM
DRAIN HEIGHT

IMPORTANT:

To avoid water spillage, do not move the dehumidifier
for at least 3 minutes after turning the power off.
Before transporting, remove the external drain hose,
drain it carefully, and return it to the space on the
back of the unit.

SET UP INSTRUCTIONS OPERATION

Turn the Unit ON

Ductwork Attachment

This dehumidifier can attach ductwork with
diameter of 8 inch to the air outlet.
To avoid airflow restrictions, do not attach duct
that exceed 16.5 feet in length and keep air outlet
clear.

Rear Drain
Hose Outlet

Plug in Electrical Cord

This dehumidifier must be plugged into a grounded
115 VAC/60Hz outlet rated at least 15 amps.
The drain hose must be connected and routed to a
safe location.

SH AH TMP JOB
CO% 50% 000C 00000h

Turn the Unit OFF

Humidity Setting

Place dehumidifier in the upright position.
After transporting the dehumidifier to the desired
location, allow the unit to sit for 30 minutes before
powering ON. This allows the refrigerant system to
stabilize and will avoid damage.

Illustration of correct positioning for best performance:

.

STORING THE UNIT

Follow the guidelines below when
storing the unit:

1. Prior to storing the unit,

clean filters and drain water.

2. Wrap the power cord and

water hose to the back of
the unit.

3. If necessary,

stack machines as shown.

NOTE:
Do not stack more than
2 machines high.
Be sure to secure the
machines to ensure
they do not fall or move.

- 2 -

Cleaning Water Pump

NOTE: Clean the water pump once unit reaches a
running time of 1,000 hours.

Ensure the dehumidifier is turned OFF and plug is removed
from the power outlet before performing maintenance.

1. Remove the (4) screws to take apart front housing of
the dehumidifier.

2. Pull connection terminal for water pump.

3. Pull water pipe to take apart water pump.

4. Remove (1) screw to take apart water pump top cover .

5. Remove (4) screws to take apart water bottom cover.

6. Clean the water pump as needed and re-install all parts.

Cleaning or Replacing Filter

NOTE: The working performance of the dehumidifier
will be greatly reduced if the filters are clogged.
Check filter weekly. Clean or replace filter if clogged.

Turn off the unit and unplug it before
performing any maintenance.

1. Remove the filter as shown.

2. Vacuum any debris from the filter.

3. Using lukewarm water and a
mild detergent, wash the filter
and allow it to dry.

4. Once dry, re-install the filter

into the dehumidifier.

OPERATION OPERATION

 Defrosting Mode

To ensure that the dehumidifier operates at its
most efficient condition, the unit device will be in
Defrosting Mode when the ambient temperature
falls below 77°F (25°C). The defrost control as
listed below:

Continuous working time is equal
to ambient temperature x2, the
minimum working time is 30
minutes.

If temperature of indoor coil is
≤26.6˚F(-3°C) after continuous
working time is reached
(continuous detection 30s). The
unit will enter Defrost Mode for 5
minutes.

When temperature of
indoor coil is ≥46.4˚F(8°C)
during Defrost Mode.
The unit will also exit
Defrost Mode.

T1 T2 RH TOTAL
00oC 00oC 00% 99999h

TIMER OFF

00h

TIMER ON

00h

Set Target TMP
Set Point = 00oC

 Information Query Menu

When the dehumidifier is ON,
Press menu key once, the screen
will display information query menu :

T1- Coil Temperature
T2- Air Outlet Temperature
RH- Air Outlet Humidity
TOTAL- Total Running Hour

The menu will return to main menu if idled for 5 seconds.

 Timer OFF

When the dehumidifier is ON,
Press menu key twice to enter
Timer Off function .The screen will display:

MAINTENANCE

Press up or down to set the
desired time between 1-24.
Time settings are in increments of 1 hour.
This is 24 hour simple timer, so the unit can
be set to turn off within next 24 hours.

 Timer ON

When the dehumidifier is OFF,
press menu keys once to enter timer on
function. The screen will display:

Press up or down to set
the desired time between 1-24.

 Calibration Inlet Sensor

When the dehumidifier is running ON,
Press menu key three times to
enter calibration. The screen will display:

This is only to set/calibrate the inlet sensor.
Use up or down to set the
temperature. To set the humidity,
Press to switch to humidity.

- 3 -

TROUBLE SHOOTING TROUBLE SHOOTING

FAULT

CAUSE

SOLUTION

Unit does
not
operate

No power to
machine.

Plug in unit; check
power at outlet and
at base of unit.
Confirm power is
on.

Fan is not
turning

Obstructed air
Outlet.

Remove
obstruction.

Unit
operating,
but room
not dry

1. Insufficient
Dehumidifying
time.

2. Poor air
circulation
in room.

3. Excessive
moisture in room.

1. Allow more time
for drying.

2. Increase air
circulation with fans.

3. Reduce external
air infiltration into
the room.

Unit
collects
minimal
water

1. Room air is dry.

2. Obstructed filter
and coils

3.Room
temperature
is too low.

1. Check humidity
with hygrometer.

2. Check filter and
coils. Clean as
necessary.

3. Increase room
temperature.

WARNING:
DO NOT attempt to rectify issues with unqualified
personnel.
If the problem you are experiencing is not listed
here, contact Global Industrial Customer Service.

CODE

ER1

ER2

ER4

Error
message

Coil sensor
error

Humidity
sensor error

Water pump
fault or
blockage

Display
Reading

Flashes every
one second

Flashes every
one second

Flashes
every one
second

Reason

1. The coil
sensor terminals
are not securely
plugged in.

2. The coil
sensor is
damaged.

3. If unsolved,
there may be a
display panel
PCB issue.

1. The humidity
sensor
terminals are
not securely
plugged in.

2. The humidity
sensor fault.

3. If is unsolved,
It may be
display panel
PCB issue
question.

Water is not
draining from
the pump
reservoir or
there is a
lack of power
to the water
pump.

Remedy

1. Verify coil
sensor terminal
is securely
plugged in.

2. Replace the
coil sensor.

3. Replace
display panel
PCB

1. Verify
humidity sensor
terminal
securely
plugged in.

2. Replace the
humidity sensor.

3.Replace
display panel
PCB

1. Make sure
maximum lift
is not
exceeded.
End of hose
should not
be higher
than 10ft.
above unit.

2. Check
pump for
debris or
blockage.

NOTE:

The table above shows error messages that the system may
detect. If the display shows an “ER” message,
Unplug the unit and reinsert. This may reset the electronics, and
if issue is resolved, no further action is required.
If error message reappears, complete the following
troubleshooting steps under “Explanation.” If this still does not
rectify the issue, contact Global Industrial customer service at
1-800-645-2986.

- 4 -