Mars Air Systems L-2254 manual

Direct Expansion Systems Re vised: 7-18-05 L-2254 vector compact Installation & Operation[...]

[...]

3 ❖ ❖ ❖ ❖ ❖ English L-2254 TABLE OF CONTENTS T able of Contents IF Y OU HA VE A DIGIT AL CONTR OL .................................................................................................. ....... 3 Intr oduction How It W orks .........................................................................................................[...]

4 ❖ ❖ ❖ ❖ ❖ English L-2254 Introduction INTR ODUCTION Congratulations on the purchase of y our Mar ine Air Systems’ V ector Compact ® air conditioner . No matter which of the f ollowing f eatures was the reason f or your purchase of this air conditioner , we are sure it will meet your needs and will giv e you man y years of efficient a[...]

5 ❖ ❖ ❖ ❖ ❖ English L-2254 Installation Unpac king and Inspection When the equipment is receiv ed, all items should be carefully chec ked against the pac king list to ensure all car tons hav e been received. Move units in the normal “up” orientation as indicated by the arro ws on each car ton. Examine car tons for shipping damage, rem[...]

6 ❖ ❖ ❖ ❖ ❖ English L-2254 Installation Minimum T ools Required • Screws driv ers • Pliers • Pipe wrenches • Wire cutters/crimpers • Drill and assor ted bits • Jig saw • Duct tape • Electrical tape • T eflon tape • Beding compound to seal thru hull fittings • Hardware to secure unit, pump , strainer , grilles & c[...]

7 ❖ ❖ ❖ ❖ ❖ English L-2254 Installation duct diameters and their corresponding supply and return air gr ille minimum area in square inches . If a transition bo x is used, the total area of supply air ducts going out of the bo x should at least equal the area of the supply duct f eeding the bo x. T o calculate the square inch area of a rou[...]

8 ❖ ❖ ❖ ❖ ❖ English L-2254 Installation Electrical Connections, Grounding and Bonding All a/c units hav e a ter minal strip mounted inside the electric box. The terminal str ip is labeled f or proper connections of the electrical supply , ground wires and pump circuits. A wir ing diagr am is provided in the electrical box and in this man [...]

9 ❖ ❖ ❖ ❖ ❖ English L-2254 Installation Installation Chec klist (Revie w prior to installation) Note: Ref er to the Elite and P asspor t I/O manuals f or installation and operation of those digital controls. Seawater Cooling System ❑ Speed scoop located as f ar below the w ater line and as close to the keel as possib le ❑ Shut off v a[...]

10 ❖ ❖ ❖ ❖ ❖ English L-2254 Operation Quic k Star t Operations Chec klist ❑ Ensure sea water intak e ball v alv e (sea cock) is open. ❑ T ur n on the a/c circuit breaker . If the seaw ater pump has its own circuit break er, turn that on. ❑ T ur n the system on. ❑ Set the desired cabin temperature (set point). ❑ Check f or a stea[...]

11 ❖ ❖ ❖ ❖ ❖ English L-2254 T roubleshooting TR OUBLESHOO TING General T roub leshooting Also see specific digital or mechanical control troubleshooting sections f ollowing these general guidelines. F ault: Will not star t. P ossible Reason/Correction 1. A/C circuit breaker is off . T ur n circuit breaker on at ship’ s panel. 2. Control[...]

12 ❖ ❖ ❖ ❖ ❖ English L-2254 T roubleshooting F ault: Low airflo w. P ossible Reason/Correction 1. Airflow is bloc ked. Remov e an y obstructions in retur n air stream. Clean return air filter and grille. Check f or cr ushed or restricted ducting, ducting must be as straight, smooth and taut as possible . 2. Fan Coil is iced. See below . F[...]

13 ❖ ❖ ❖ ❖ ❖ English L-2254 T roubleshooting F ault: F an runs continuously although it is set to cyc le with compressor . P ossible Reason/Correction 1. Failed triac on P asspor t I/O circuit boar d. Send f or repair or call local ser vice technician (see back of book f or a listing). F ault: No cooling or heating. P ossible Reason/Corre[...]

14 ❖ ❖ ❖ ❖ ❖ English L-2254 T roubleshooting 2. Damaged jac k/socket in displa y head or on circuit boar d. Visually chec k to see that pins inside sock et are not bent or corroded. Repair or replace display or circuit board if needed. F ault: “PLF” is display ed (Elite Digital Control onl y). P ossible Reason/Correction 1. Indicates [...]

15 ❖ ❖ ❖ ❖ ❖ English L-2254 Maintenance MAINTENANCE Rever sing V alves Re v erse cycle units ha v e a re v ersing valv e; the v alve must be energized periodically to k eep the internal par ts moving freely . T o do this , s witch the a/c unit into heat f or a f ew seconds once a month. Seawater Strainer Insure that y our pump receives ad[...]

16 ❖ ❖ ❖ ❖ ❖ English L-2254 The f ollowing w arranty is e xtended to cover marine air conditioners manuf actured or supplied by Dometic Environmental Corporation, and is subject to qualifica- tions indicated. Dometic warrants f or the per iods set forth below that products man uf actured or supplied by it will be free from def ects in wor[...]

17 ❖ ❖ ❖ ❖ ❖ English L-2254 DESCRIPTION OF FIGURES Fig 1. Overview of Vector Compact Fig 2. Placement of V ector Compact Fig 3. Spacing Allo wances & Unit Dimensions Fig 4. Installation of Condensate Drain Fig 5. Mounting Brackets Fig 6. 3-Knob Control Fig 7. Seawater Pump and Plumbing Configuration Fig 8. Ducting and Grille Sizing Fi[...]

18 L-2254 Fig 1. Overview of Vector Compact Fig 2. Placement of V ector Compact[...]

19 L-2254 Fig 3. Spacing Allo wances & Unit Dimensions PROP R IE TARY NOT E: TH E IN FORMATION CO NTAINED WITHIN THIS DOCUM ENT IS THE P ROP ERT Y O F D OME TI C CORP ORAT ION. AN Y ATTE MPT TO COPY OR D ISTR IBUT E WITHOUT WRITTEN CONSENT FRO M DO MET IC CORP ORAT IO N SHAL L BE CON SI DERED UN LAW FUL AND CAN BE CONTE STED IN A C OU RT O F LA[...]

20 L-2254 Fig 5. Mounting brac kets Fig 4. Installation of condensate drain Fig 6. 3-Knob Control[...]

21 L-2254 Fig 8. Ducting and Grille Sizing Fig 7. Seawater pump and plumbing configuration Model 5K 7K 10K 12K 16K 1 8 K 24K D u ct Di a meter (in/mm) 4/102 5/127 6/152 6/152 7/17 8 7/17 88 /20 3 D u ct Are a ( sq in/cm) 12.6/ 8 1 19.6/126 2 8 . 3 /1 83 2 8 . 3 /1 83 38 .5/24 83 8 .5/24 8 50. 3 / 3 25 R/A Grille ( sq in/cm) 64/41 38 0/516 100/645 1[...]

22 L-2254 Fig 9. Wiring Diagrams for Mechanical Contr ols (VCM5-16 & 24K)[...]

23 L-2254 Fig 10. Wiring Diagrams for Mechanical Contr ols (VCM5-16HV & 24K 230V/3Ph)[...]

24 L-2254 Fig 11. Wiring Diagrams f or Digital Controls (VCD5-16 & VCD/VHD 24K)[...]

25 L-2254 Fig 12. Wiring Diagrams f or Digital Controls (VCD5-16HV & VCD/VHD 24K 460V/3Ph)[...]

26 L-2254 Fig 13. Wiring Diagrams for Digital Contr ols (VCD18K-HV & VCM18K-HV)[...]

[...]

[...]

[...]

[...]

[...]

L-2254 Dometic En vir onmental Corporation 2000 N. Andrews A ve . Ext. • P ompano Beach, FL 33069-1497 USA • Phone: 954-973-2477 • F acsimile: 954-979-4414 For Sales and Service Calls within Europe and the Middle East, please contact +44 (0) 870 330 6101 Website: www.marineair .com • Email: sales@marineair.com[...]