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Congratulations 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 and meet the warranty conditions.
LIMITED FIVE (5) YEAR EXPRESS WARRANTY

MARS warrants all parts of the DVC and DVH Series Ductless Mini-Split 

to be free from defects in workmanship and materials for normal use and 

maintenance for five (5) years from the date of purchase by the original 

consumer for the original installation. This Express Limited Warranty applies 

only when the Ductless Mini-Split is installed as a complete matched system: 

outdoor unit and indoor unit, and only when the system is installed per MARS 

installation instructions and in accordance with all local, state and national 

codes for normal use.

LIMITED 3rd to 6th YEAR EXPRESS WARRANTY

The compressor only is warranted to be free from defects in workmanship 

and materials for normal use and maintenance for four additional years, for a 

total of six (6) years from the date of purchase by the original consumer for 

the original installation. This Express Limited Warranty applies only when the 

Ductless Mini-Split is installed as a complete matched system: outdoor unit 

and indoor unit, and only when the system is installed per MARS installation 

instructions and in accordance with all local, state and national codes for 

normal use.

EXCEPTIONS

The Limited Express Warranty does not cover normal maintenance—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 covered by this Limited Warranty. 

It also does not cover any portion or component of the system that is not 

supplied by MARS, regardless of the cause of failure of such portion or 

component.

CONDITIONS FOR WARRANTY COVERAGE

•  Unit must be operated according to 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)

•  Installation was done by a trained, licensed or otherwise qualified HVAC 

dealer/contractor

•  Performance cannot be impaired by use of any product not authorized by 

MARS, or by any adjustments or adaptations to components

•  Serial numbers and/or rating plate have not been altered or removed
•  Damage has not been a result of inadequate wiring or voltage conditions, 

use during brown-out conditions, or circuit interruptions

•  Air flow around any section of the unit has not been restricted
•  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 original consumer.        

The consumer must retain a receipted bill of sale as proof of  warranty    

period. Without this proof, the express warranty 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, 

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 replacement part/product is no longer available during 

the warranty period, 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. MARS makes no 

warranty of merchantability. We do not warrant that the unit is suitable 

for any particular purpose or can be used in buildings or rooms of 

any particular size or condition except as specifically provided in this 

document. 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 five-

year 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 warranty lasts or do not allow the 

exclusion or limitation of incidental or consequential damages, so the 

above limitations or exclusions may not apply to you.

4.  No warranties are made for units sold outside the continental United 

States and Canada. Your distributor or final seller may provide a 

warranty on units sold outside these areas.

5.  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 the installer 

does not remedy your claim, write to MARS, 1900 Wellworth Ave., Jackson 

MI 49203. Enclose a report of inspection by your installer or service person. 

Include model number, serial number, and date of purchase.

Owner responsibilities are set forth in the 

instruction manual—read it carefully.

LIMITED EXPRESS WARRANTY

DVHxxSH_WARRANTY_12/2021

KEEP THIS INFORMATION AS A RECORD OF YOUR PURCHASE

 

INDOOR UNIT 

OUTDOOR UNIT 

INSTALLATION

 

Model Number 

Model Number 

Installer Name

 

Serial Number 

Serial Number 

Phone No./Contact Info

 

            Date of Purchase  

Date Installation Completed

Remember to retain your bill of sale as proof of warranty period.

Please visit www.marsdelivers.com 

to register your new product

Summary of Contents for Comfort-Aire Century A-DVH09SH-0-CY

Page 1: ...www marsdelivers com Owner s Manual Installation Manual DVH Series Inverter Single Zone Ductless Mini Split DVH09SH 0 DVH09SH 1 DVH12SH 0 DVH12SH 1 DVH18SH 1 DVH24SH 1...

Page 2: ...Owner s Manual Table of Contents Safety Precautions 03 Care and Maintenance 12 Troubleshooting 14 1 Indoor unit display 07 2 Operating temperature 09 3 Other features 10 4 Setting angle of airflow 11...

Page 3: ...t 25 Outdoor Unit Installation 26 1 Select installation location 26 2 Install drain joint 27 3 Anchor outdoor unit 27 4 Connect signal and power cables 29 Refrigerant Piping Connection 30 A Note on Pi...

Page 4: ...ALL INVERTER MINI SPLITS REQUIRE 14 4 STRANDED WIRE BETWEEN THE INDOOR AND OUTDOOR UNITS NO EXCEPTIONS 14 AWG 4 C TRAY CABLE A14 4SRBTHHNBK 14 AWG 19 0147 BC 4 C THHN CONDUCTORS POWER CONTROL TRAY CAB...

Page 5: ...not insert fingers rods or other objects into the air inlet or outlet This may cause injury since the fan may be rotating at high speeds Do not use flammable sprays such as hair spray lacquer or pain...

Page 6: ...exceeding 30mA and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules For all electrical work follow all local and national wiring standards regulations and th...

Page 7: ...o not install the unit within 1 meter 3 feet of any combustible materials Do not install the unit in a location that may be exposed to combustible gas leaks If combustible gas accumulates around the u...

Page 8: ...ot be mixed with general household waste WARNING for Using R32 R290 Refrigerant 2 2 2 2 2 When flammable refrigerant are employed appliance shall be stored in a well ventilated area where the room siz...

Page 9: ...OFF remains on when TIMER ON is set FRESH UV C lamp SWING TURBO SILENCE or SOLAR PV ECO feature is turned on for 3 seconds when TIMER OFF is set FRESH UV C lamp SWING TURBO SILENCE or SOLAR PV ECO fea...

Page 10: ...OFF is set FRESH UV C lamp SWING TURBO or SILENCE features is turned off when defrosting for cooling heating units when unit is self cleaning some units when fresh feature is turned on some units whe...

Page 11: ...2 F 15 C 30 C 5 F 86 F 0 C 50 C 32 F 122 F 0 C 52 C 32 F 126 F For special tropical models 0 C 52 C 32 F 126 F For special tropical models 15 C 50 C 5 F 122 F For models with low temp cooling systems...

Page 12: ...settings to stay comfortable This function can only be activated via remote control And the Sleep function is not available in FAN or DRY mode Press the SLEEP button when you are ready to go to sleep...

Page 13: ...do not use this function unless the remote control is lost and it is absolutely necessary To restore regular operation use the remote control to activate the unit Unit must be turned off before manua...

Page 14: ...be bad for your health Make sure to clean the filter once every two weeks 1 Lift the front panel of the indoor unit 2 Grip the tab on the end of the filter lift it up then pull it towards yourself 3...

Page 15: ...If you plan not to use your air conditioner for an extended period of time do the following Clean all filters Turn on FAN function until unit dries out completely Turn off the unit and disconnect the...

Page 16: ...Troubleshooting Troubleshooting The unit changes from COOL HEAT mode to FAN mode The indoor unit makes noises A rushing air sound may occur when the louver resets its position A squeaking sound may o...

Page 17: ...customer service center Provide them with a detailed description of the unit malfunction as well as your model number Troubleshooting Troubleshooting When troubles occur please check the following po...

Page 18: ...oor heating performance The outdoor temperature is extremely low Use auxiliary heating device Cold air is entering through doors and windows Make sure that all doors and windows are closed during use...

Page 19: ...Shape Quantity PC Need to be installed on the back of main air filter by the authorized technician while installing the machine Mounting plate fixing screw Remote controller Fixing screw for remote co...

Page 20: ...Wall Hole 4 9 90 0 5 55 5i in n 2 2 3 3m m 4 4 7 75 5i in n 1 12 2c cm m Mount Indoor Unit STEP 8 Wrap Piping and Cable not applicable for some locations in North America Connect Piping Prepare Drain...

Page 21: ...requirement of local and national standards The installation may be slightly different in different areas Wall Mounting Plate Power Cable Some Units Refrigerant Piping Signal Cable Remote Controller...

Page 22: ...refrigerant piping While choosing a location be aware that you should leave ample room for a wall hole see Drill wall hole for connective piping step for the signal cable and refrigerant piping that c...

Page 23: ...ke sure to avoid wires plumbing and other sensitive components Type A Type B 101mm 4in 179mm 7 05in 136mm 5 35in 37mm 1 45in 290mm 11 4in 49mm 1 95in Right rear wall hole 65mm 2 5in Indoor unit outlin...

Page 24: ...side Right hand side Left rear Right rear Knock out Panel CAUTION Be extremely careful not to dent or damage the piping while bending them away from the unit Any dents in the piping will affect the u...

Page 25: ...the compressor or any moving parts within the unit If the unit has an auxiliary electric heater it must be installed at least 1 meter 40in away from any combustible materials To avoid getting an elect...

Page 26: ...on the back DRAIN HOSE MUST BE ON BOTTOM Make sure that the drain hose is at the bottom of the bundle Putting the drain hose at the top of the bundle can cause the drain pan to overflow which can lea...

Page 27: ...pressure to the left and right hand sides of the unit The unit should not jiggle or shift 6 Using even pressure push down on the bottom half of the unit Keep pushing down until the unit snaps onto th...

Page 28: ...that air outlet fan is at a 90 angle to the direction of the wind If needed build a barrier in front of the unit to protect it from extremely heavy winds See Figures below Strong wind Strong wind Stro...

Page 29: ...bber seal see Fig B do the following 1 Insert the drain joint into the hole in the base pan of the unit The drain joint will click in place 2 Connect a drain hose extension not included to the drain j...

Page 30: ...Remove the nuts from expansion bolts and place outdoor unit on bolts 6 Put washer on each expansion bolt then replace the nuts 7 Using a wrench tighten each nut until snug WARNING WHEN DRILLING INTO C...

Page 31: ...amp down tightly 1 Remove the wire cover from the unit by loosening the 3 screws 2 Dismount caps on the conduit panel 3 Temperarily mount the conduit tubes not included on the conduit panel 4 Properly...

Page 32: ...et substances or gases other than the specified refrigerant enter the unit The presence of other gases or substances will lower the unit s capacity and can cause abnormally high pressure in the refrig...

Page 33: ...alling into the pipe 2 Using a reamer or deburring tool remove all burrs from the cut section of the pipe Pipe Reamer Point down Step 3 Flare pipe ends Proper flaring is essential to achieve an airtig...

Page 34: ...0 76 0 78 23 2 23 7 0 91 0 93 18 20 180 200kgf cm 32 39 320 390kgf cm 49 59 490 590kgf cm 57 71 570 710kgf cm 67 101 670 1010kgf cm 9 52 0 375 12 7 0 5 16 0 63 19 0 75 1 Unscrew the cover from the pa...

Page 35: ...for at least 15 minutes or until the Compound Meter reads 76cmHG 10 Pa 2 3 4 5 5 6 Close the Low Pressure side of the manifold gauge and turn off the vacuum pump 7 Wait for 5 minutes then check that...

Page 36: ...0Btu h and 24000Btu h ADDITIONAL REFRIGERANT PER PIPE LENGTH Connective Pipe Length m Air Purging Method Additional Refrigerant Standard pipe length Vacuum Pump N A Standard pipe length Vacuum Pump Li...

Page 37: ...Water Method Using a soft brush apply soapy water or liquid detergent to all pipe connection points on the indoor unit and outdoor unit The presence of bubbles indicates a leak Leak Detector Method If...

Page 38: ...re of the refrigerant circuit will increase This may reveal leaks that were not present during your initial leak check Take time during the Test Run to double check that all refrigerant pipe connectio...

Page 39: ...ging bag Outdoor Unit 1 Cut the packing belt 2 Take the unit out of the carton 3 Remove the foam from the unit 4 Remove the packaging bag from the unit Packing Indoor unit 1 Put the indoor unit into t...

Page 40: ...r The consumer must retain a receipted bill of sale as proof of warranty period Without this proof the express warranty begins on the date of shipment from the factory REMEDY PROVIDED BY THE LIMITED E...

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