Mars PS-121B User manual

517.787.2100 • www.marsdelivers.com • www.heatcontroller.com
Remote Control Manual
REMOTE CONTROL GUIDE
Portable Room Air Conditioner
Remote Control for:
PS-121B
PSH-141A
French version of this manual is available on our website
Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • [phone] • www.heatcontroller.com

Remote Control Manual - PS-121B / PSH-141A
Handling the remote controller ........................................................................................................ 2
Remote controller specications...................................................................................................... 3
Indicators on LCD............................................................................................................................ 4
How to use the buttons.................................................................................................................... 5
Auto operation ................................................................................................................................. 5
Cooling/Heating/Fan operation........................................................................................................ 5
Dehumidifying operation.................................................................................................................. 6
Timer operation ............................................................................................................................... 7
ECONOMY operation .................................................................................................................... 10
Important NOTES.......................................................................................................................... 11
Warranty ........................................................................................................................................ 12
TABLE OF CONTENTS
KEEP THIS INFORMATION AS A RECORD OF YOUR PURCHASE
PRODUCT IDENTIFICATION INSTALLATION
Model Number Installer Name
Serial Number Phone Number/Contact Information
Date of Purchase Date Installation Completed
o Component of new HVAC system o Replacement only
Remember to retain your bill of sale as proof of warranty period.
If you should ever have a warranty claim, you will need the model number, serial
number and dated receipt as proof of purchase.

Remote Control Manual - PS-121B / PSH-141A
2
USING THE REMOTE CONTROLLER
REPLACING THE BATTERIES
Location of the remote controller.
Use the remote controller within a distance
of 25 feet (8 meters) from the unit, pointing it
towards the receiver. Reception is conrmed by
a beep.
• The unit will not operate if curtains, doors or other materials block the signals from the
remote controller to the indoor unit. Prevent any liquid from spilling onto the remote
controller. Do not expose the remote controller to direct sunlight or heat.
• If the infrared signal receiver on the unit is exposed to direct sunlight, the air conditioner
may not function properly. Use curtains to prevent the sunlight from falling on the
receiver.
• If other electrical appliances react to the remote controller, either move these appliances
or consult your local dealer.
The remote controller is powered by two batteries (R03/
LR03X2) housed in a compartment on the back of the unit
and protected by a cover.
(1) Remove the cover by pressing and sliding off.
(2) Remove the old batteries and insert the new batteries,
placing the(+) and (-) ends correctly.
(3) Reattach the cover by sliding it back into position.
NOTE: When the batteries are removed, the remote
controller erases all programming.
After new batteries are inserted, the remote controller
must be reprogrammed.
CAUTION

Remote Control Manual - PS-121B / PSH-141A
3
PERFORMANCE FEATURE
1. Operating Mode: AUTO, COOL, DRY, HEAT (PSH-141 model only), and FAN.
2. Timer setting function in 24 hours.
3. Indoor setting temperature range : 62°F~88°F (17°C~30°C)
4. Full function of LCD (Liquid Crystal Display)
NOTE: All the illustrations in this manual are for explanation purpose only. Your unit may appear
slightly different, but will function as described.
CAUTIONS
• Do not mix old and new batteries or batteries of a different type.
• Do not leave the batteries in the remote controller if it is not going to be used for 2 or 3 months.
• Dispose of the old batteries in a responsible manner.
REMOTE CONTROLLER SPECIFICATIONS
Rated Voltage 3.0V(Dry batteries R03/LR03×2)
Lowest Voltage of CPU Emitting Signal 2.0V
Signal Receiving Range 25 ft/8m
Environment 5°C~60°C(41°F~140°F)

Remote Control Manual - PS-121B / PSH-141A
4
INDICATORS ON LCD
MODE display
Displays the current selected mode. Including AUTO,
COOL, DRY, HEAT (PSH-141 model only) and FAN.
Transmission Indicator
This transmission indicator will light when the remote
controller transmits signals to the indoor unit.
Temp./Timer display
The temperature setting (from 17°C (62°F) to
30°C (88°F) or timer setting (0~24h) will be displayed. If
FAN mode is selected, there will be no display.
ON/OFF display
This indicator will be displayed when the unit is
operating.
MODE display (FAN mode)
FAN SPEED display
Displays the selected fan speed: AUTO, HIGH, MED
and LOW. Nothing displays when the fan speed is
selected in AUTO speed. When AUTO or DRY mode is
selected, no signals are displayed.
TIMER display
This display area shows the settings of the TIMER. If
only the Auto-on time function is set, LCD will display
TIMER ON. If only the Auto-off time function is set,
it will display TIMER OFF. If both functions are set, it
will display TIMER ON OFF which indicates you have
chosen both the Auto-on time and Auto-off time.
LOCK Indicator
LOCK is displayed when pushing the LOCK
button. Push the LOCK button to clear display.

Remote Control Manual - PS-121B / PSH-141A
5
HOW TO USE THE BUTTONS
Auto Operation
Ensure the unit is plugged in and power is available.
The OPERATION indicator on the display panel of the
indoor unit illuminates.
1. Press the MODE button to select Auto.
2. Press the TEMP button to set the desired
temperature. The temperature can be set within
a range of 17°C(62°F)~ 30°C (86°F) in 1°C(2°F)
increments.
3. Press the ON/OFF button to start the unit.
NOTE:
1. In the Auto mode, the unit can logically choose
Cooling, Fan, and Dehumidifying modes by sensing
the difference between the actual ambient room
temperature and the set temperature on the remote
controller.
2. In the Auto mode the fan speed is automatically
controlled.
3. If the Auto mode does not heat or cool adequately
for personal comfort, the desired mode can be
selected manually.
Cooling / Heating / Fan Operation
Ensure the unit is plugged in and power is available.
1. Press the MODE button to select COOL, HEAT,
(PSH-141 model only) or FAN mode.
2. Press the TEMP button to set the desired
temperature. The temperature can be set within
a range of 17°C(62°F)~ 30°C (86°F) in 1°C(2°F)
increments.
3. Press the FAN SPEED button to select the
fan speed in four steps- Auto, Low, Med,or High.
4. Press the ON/OFF button to start the unit.
NOTE:
In the FAN mode, the setting temperature is not
displayed in the remote controller and you cannot
control the room temperature. In this case, only steps
1, 3 and 4 may be performed.

Remote Control Manual - PS-121B / PSH-141A
6
HOW TO USE THE BUTTONS
Dehumidifying Operation
Ensure the unit is plugged in and power is available.
The OPERATION indicator on the display panel of the
indoor unit illuminates.
1. Press the MODE button to select DRY mode.
2. Press the TEMP button to set the desired
temperature. The temperature can be set within
a range of 17°C(62°F)~ 30°C (86°F) in 1°C(2°F)
increments.
3. Press the ON/OFF button to start the unit.
NOTE:
In the Dehumidifying mode, you cannot change the fan
speed. It is controlled automatically.

Remote Control Manual - PS-121B / PSH-141A
7
HOW TO USE THE BUTTONS
Timer Operation
Press the TIMER ON button to set the auto-on time of
the unit. Press the TIMER OFF button to set the auto-
off time of the unit.
1. Press the TIMER ON button. The remote controller
shows TIMER ON, the last Auto-on setting time and
the signal “h” will be shown on the LCD display area.
The Auto-on time can now be reset to START the
operation.
2. Push the TIMER ON button again to set desired
Auto-on time. Each time you press the button, the
time increases in 30 minutes increments, up to 10
hours, then at 1 hour increments up to 24 hours.
3. After setting the TIMER ON ,there will be a
half second delay before the remote controller
transmits the signal to the unit. After approximately
2 seconds, the signal “h” will disappear and the
set temperature will re-appear on the LCD display
window.
To set the Auto-Off Timer
1. Press the TIMER OFF button. The remote controller
shows TIMER OFF. The last Auto-off setting time
and the signal “h” will be shown on the LCD display
area. The Auto-off time can now be reset to START
the operation.
2. Push the TIMER OFF button again to set desired
Auto-off time. Each time you press the button, the
time increases in 30 minute increments, up to 10
hours, then at 1 hour increments up to 24 hours.
3. After setting the TIMER OFF, there will be a
half second delay before the remote controller
transmits the signal to the unit. After approximately
another 2 seconds, the signal “h” will disappear
and the set temperature will re-appear on the LCD
display window.

Remote Control Manual - PS-121B / PSH-141A
8
HOW TO USE THE BUTTONS
Examples of Timer Setting
TIMER ON
(Auto-on Operation)
The TIMER ON feature is useful when you want
the unit to turn on automatically. For instance, you
can set the unit to turn on before you will be returning
home, and the unit will automatically start operating at
the set time.
Example:
To start the unit in 6 hours:
1. Press the TIMER ON button, the last setting of
starting operation time and the signal “h” will show
on the display area.
2. Press the TIMER ON button to display “6:0h” on the
TIMER ON display of the remote controller.
3. Wait for about 3 seconds and the digital display
area will show the temperature again, indicating the
function has been activated.
IMPORTANT
The effective operation time set by the remote controller for the timer function is limited to the following
settings: 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10, 11, 12,
13, 14, 15,16,17, 18, 19, 20, 21, 22, 23 and 24.

Remote Control Manual - PS-121B / PSH-141A
9
HOW TO USE THE BUTTONS
Timer OFF
(Auto-off Operation)
The TIMER OFF feature is useful when you want
the unit to turn off automatically after you go to
bed or when you leave for work. The unit will stop
automatically at the set time.
Example:
To stop the unit in 10 hours:
1. Press the TIMER OFF button, the last setting for
stopping operation and the signal “h” will show on
the display area.
2. Press the TIMER OFF button to display “10h” on the
TIMER OFF display of the remote controller.
3. Wait for about 3 seconds and the digital display area
will show the temperature again. This function is now
activated.
Combined Timer
(Setting both ON and OFF timers simultaneously)
TIMER OFF → TIMER ON
(On → Stop → Start operation)
This feature is useful when you want to stop the unit
after you go to bed, and start it again in the morning
when you wake up or when you return home.
Example:
To stop the air conditioner in 2 hours and start it again
10 hours later:
1. Press the TIMER OFF button.
2. Press the TIMER OFF button again to display 2.0h
on the TIMER OFF display.
3. Press the TIMER ON button.
4. Press the TIMER ON button again to display 10h on
the TIMER ON display .
5. Wait for the remote control to display the set
temperature.

Remote Control Manual - PS-121B / PSH-141A
10
HOW TO USE THE BUTTONS
TIMER ON → TIMER OFF
(Off → Start → Stop operation)
This feature is useful when you want to start the unit
before you wake up and stop it after you leave the
house.
Example:
To start the unit in 2 hours, and stop it 5 hours later.
1. Press the TIMER ON button.
2. Press the TIMER ON button again to display on
the TIMER ON display.
3. Press the TIMER OFF button.
4. Press the TIMER OFF button again to display 5.0
on the TIMER OFF display .
5. Wait for the remote control to display the setting
temperature.
Economy (SLEEP) Operation
Activate/Disable sleep function can maintain the
most comfortable temperature and save energy. This
function is available on COOL, HEAT or AUTO mode
only. For details on the LCD display window, see
“Sleep operation” in “USER’S MANUAL”.
NOTE:
While the unit is running under SLEEP mode, it will
be cancelled if MODE, FAN SPEED or ON/OFF is
pressed.
The timer setting(TIMER ON or TIMER
OFF) that in sequence occurs directly
after the set time will be activated rst.
CAUTION
The timer setting (TIMER ON or TIMER OFF) that
occurs immediately after the set time, is the setting
that will be activated rst.

Remote Control Manual - PS-121B / PSH-141A
This equipment generates, uses and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions,
may cause harmful interference to radio
communications. However, there is no guarantee
that interference will not occur in a particular
installation.
If the unit does cause interference to radio or
television reception (determined by turning the
portable unit off and on to see if the interference
continues), the user should to try to correct the
interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment
and receiver.
• Connect the equipment into an outlet on a
circuit different from the one to which the radio
or TV is connected.
• Consult the dealer or an experienced radio/TV
technician for help.
WARNING!
Changes or modications not specically
approved by the manufacturer could void the
warranty, and could result in damage to the unit,
as well as to the structure; such modications
could also result in physical injury.
Button design is based on typical model and
might be slightly different from the actual one you
purchased, the actual shape shall prevail.
If there are signicant differences between functions/
illustrations presented in this remote controller
manual and the unit’s User Manual, the User’s
Manual should be considered as the correct version.
References to “Heat Mode” apply only to the PSH-
141 model. If the unit does not have the heating
function, it will not operate in that mode when the
corresponding button on the remote controller is
pressed.
This device complies with all national regulations. In
Canada, it complies with CANICES-3(B)/NMB-3(B).
In USA, this device complies with part 15 of the
FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a residential
installation.
NOTES

Remote Control Manual - PS-121B / PSH-141A
Congratuations on purchasing your new HVAC equipment.
It’s been designed for long life and reliable service, and is
backed by one of the strongest warranties in the industry.
Your unit automatically qualifies for the warranty coverage
listed below, providing you keep your proof of purchase
(receipt) for the equipment.
GENERAL WARRANTY INFORMATION
This limited express warranty is applicable to HRC Series
water source heat pumps manufactured by Heat Controller/
MARS and used in commercial installations.
LIMITED ONE (1) YEAR EXPRESS WARRANTY ON PARTS
Heat Controller/MARS warrants all parts of the HRC water
source heat pump used in commercial applications to be free
from defects in workmanship and materials for normal use and
maintenance for one (1) year from the date of purchase by
the original consumer for the original installation. This Express
Limited Warranty applies only when the system is installed per
Heat Controller/MARS, installation instructions and in accor-
dance with all local, state and national codes for normal use.
LIMITED FIVE (5) YEAR EXPRESS WARRANTY ON
COMPRESSOR
We will replace a compressor which proves to be defective for
a period of five (5) years from date of heat pump purchase. All
restrictions, limitations and procedures for the one year parts
warranty apply to the additional compressor warranty period.
EXCEPTIONS
The Limited Express Warranty does not cover normal main-
tenance—Heat Controller/MARS recommends that regular
inspection/maintenance be performed at least once a season
and proof of maintenance be kept. Additionally, labor charges,
transportation charges for replacement parts, replacement of
refrigerant or filters, any other service calls/repairs are not cov-
ered by this Limited Warranty. It also does not cover any por-
tion or component of the system that is not supplied by Heat
Controller/MARS, regardless of the cause of failure of such
portion or component.
CONDITIONS FOR WARRANTY COVERAGE
• Unit must be operated according to Heat Controller/MARS
operating instructions included with the unit and cannot
have been subjected to accident, alteration, improper repair,
neglect or misuse, or an act of God (such as a flood)
• Serial numbers and/or rating plate have not been altered or
removed
• Installation was done by a trained, licensed or otherwise
qualified geothermal dealer/contractor
• Performance cannot be impaired by use of any product not
authorized by Heat Controller/MARS, or by any adjustments
or adaptations to components
• Damage has not been a result of inadequate wiring or volt-
age conditions, use during brown-out conditions, or circuit
interruptions
• Air flow around any section of the unit has not been restrict-
ed
• Unit remains in the original installation
• Unit was not purchased over the internet
DURATION OF WARRANTY & REGISTRATION
The warranty begins on the date of purchase by the orginal
consumer. The consumer must retain a receipted bill of sale as
proof of warranty period. Without this proof, the express war-
ranty begins on the date of shipment from the factory.
REMEDY PROVIDED BY THE LIMITED EXPRESS
WARRANTY
The sole remedy under the Limited Warranty is replacement
of the defective part. If replacement parts are required within
the period of this warranty, Heat Controller/MARS replacement
parts shall be used; any warranty on the replacement part(s)
shall not affect the applicable original unit warranty. Ready
access to the unit for service is the owner’s responsibility.
Labor to diagnose and replace the defective part is not covered
by this Limited Express Warranty. If for any reason the replace-
ment part/product is no longer available during the warranty
period, Heat Controller/MARS shall have the right to allow a
credit in the amount of the current suggested retail price of the
part/product instead of providing repair or replacement.
LIMITATION OF LIABILITY
1. There are no other express or implied warranties. Heat
Controller/MARS makes no warranty of merchantability. We
do not warrant that the unit is suitable for any particular pur-
pose or can be used in buildings or rooms of any particular
size or condition except as specifically provided in this docu-
ment. There are no other warranties, express or implied,
which extend beyond the description in this document.
2. All warranties implied by law are limited in duration to the
one-term of the parts warranty. Your exclusive remedy is
limited to the replacement of defective parts. We will not
be liable for any consequential or incidental damages
caused by any defect in this unit.
3. This warranty gives you specific legal rights and you may
also have other rights which vary from state to state. Some
states do not allow limitation on how long an implied war-
ranty lasts or do not allow the exclusion or limitation of inci-
dental or consequential damages, so the above limitations
or exclusions may not apply to you.
4. No warranties are made for units sold outside the continen-
tal United States and Canada. Your distributor or final seller
may provide a warranty on units sold outside these areas.
5. Heat Controller/MARS will not be liable for damages if our
performance regarding warranty resolution is delayed by
events beyond our control including accident, alteration,
abuse, war, government restrictions, strikes, fire, flood, or
other acts of God.
HOW TO OBTAIN WARRANTY SERVICE OR PARTS
If you have a warranty claim, notify your installer promptly. If he
doesn’t take care of your claim, write to Heat Controller/MARS,
P.O. Box 1089, Jackson MI 49204. Enclose a report of inspec-
tion by your installer or service person. Include model number,
serial number, and date of purchase.
LIMITED EXPRESS WARRANTY
Owner responsibilities are set forth in the instruction manual—read it carefully.

Remote Control Manual - PS-121B / PSH-141A
THIS PAGE INTENTIONALLY LEFT BLANK

Remote Control Manual - PS-121B / PSH-141A
THIS PAGE INTENTIONALLY LEFT BLANK

:HOOZRUWK$YH-DFNVRQ0,3KZZZKHDWFRQWUROOHUFRP


'XHWRRQJRLQJSURGXFWLPSURYHPHQWVVSHFLILFDWLRQVDQGGLPHQVLRQVDUH
VXEMHFWWRFKDQJHDQGFRUUHFWLRQZLWKRXWQRWLFHRULQFXUULQJREOLJDWLRQV'HWHUPLQLQJWKH
DSSOLFDWLRQDQGVXLWDELOLW\IRUXVHRIDQ\SURGXFWLVWKHUHVSRQVLELOLW\RIWKHLQVWDOOHU
$GGLWLRQDOO\WKHLQVWDOOHULVUHVSRQVLEOHIRUYHULI\LQJGLPHQVLRQDOGDWDRQWKHDFWXDOSURGXFW
SULRUWREHJLQQLQJDQ\LQVWDOODWLRQSUHSDUDWLRQV
,QFHQWLYHDQGUHEDWHSURJUDPVKDYHSUHFLVHUHTXLUHPHQWVDVWRSURGXFWSHUIRUPDQFH
DQGFHUWLILFDWLRQ$OOSURGXFWVPHHWDSSOLFDEOHUHJXODWLRQVLQHIIHFWRQGDWHRIPDQXIDFWXUH
KRZHYHUFHUWLILFDWLRQVDUHQRWQHFHVVDULO\JUDQWHGIRUWKHOLIHRIDSURGXFW
7KHUHIRUHLWLVWKHUHVSRQVLELOLW\RIWKHDSSOLFDQWWRGHWHUPLQHZKHWKHUDVSHFLILF
PRGHOTXDOLILHVIRUWKHVHLQFHQWLYHUHEDWHSURJUDPV
11/2015
1900 Wellworth Ave. • Jackson, MI 49203
517.787.2100 • www.marsdelivers.com • www.heatcontroller.com