Mermaid Air Conditioner manual

MERMAID MARINE AIR CONDITIONING INSTALLATION & OPERATIONS GUIDE Mermaid Manufacturing of Southwest Florida, Inc. 2651 Park Windsor Drive, Suite 203 Fort Myers, FL 33901 (239) 418-0535 (800) 330-3553 Fax (239) 418-0538 E-mail: MMair@Mindspring.com Web site: http://www.mm air.com[...]

TABLE OF CONTENTS SECTION 1 (OVERVIEW) A. Introduction to Mermaid SECTION 2 (INSTALLATION and OPERATION) A. Air Conditioner Installation B. Operation SECTION 3 (OPERATION and PROGRAMMING) A. Digital, Programmable Thermostat SECTION 4 (PUMP RELAY BOX) A. Introduction B. Installation SECTION 5 (MAINTENANCE and WINTERIZATION) A. Maintenance B. Winteri[...]

(OVERVIEW) A. Introduction: Congratulations!! You have just purchased one the most dependable Marine Air Conditioners on the market today, a MERMAID. Mermaid supplies pleasure boat owners, custom boat builders, yacht brokers, boat dealers and marinas around the world with their marine air conditioning needs. Mermaid air conditioners are manufacture[...]

A. AIR CONDITIONER INSTALLATION: First, and of foremost importance, the air conditioner and electrical box m ust be installed in a non-explosive, dry environment. SEE THE FOLLOWING WARNING. WARNING IF THE AIR CONDITIONER OR ELECTRICAL BOX ARE PLACED IN AN EXPLOSIVE ENVIRONMENT OR EXPOSED TO AN EXPLOSIVE ENVIRONMENT OR EXPLOSIVE MATERIALS, EXPLOSION[...]

We will now address each of the above eight requirements in detail: 1. Installing the Air Conditioner Unit: AIR CONDITIONER DIMENSIONS UNIT BTU WIDTH LENGTH HEIGHT 5,200 Cool Only 11.5 Inches 15 Inches 11.5 Inches 5,200 Reverse Cycle 12 Inches 18 Inches 11.5 Inches 6,500 11.5 Inches 16 Inches 11.5 Inches 9,000 11.5 Inches 16 Inches 11.5 Inches 12,0[...]

CONDENSATION WATER CAN COME IN CONTACT WITH IT SHOULD THE CONDENSATION WATER OVER FLOW ITS PAN. NEVER PLACE THE ELECTRICAL BOX BELOW THE AIR CONDITIONING UNIT. WARNING IF CONDENSATION WATER CO NTACTS THE ELECTRICAL BOX ELECTRICAL SHORTING COULD OCCUR CAUSING FIRE WHICH COULD RESULT IN SERIOUS INJURY, DEATH AND/OR DESTRUCTION OF THE BOAT . We sugges[...]

WARNING BEFORE DRILLING THE MOUNTING HOLE FOR THE SEA COCK THE ENTIRE BOAT MUST BE OUT OF THE WATER. DRILLING THE SEA COCK MOUNTING HOLE WITH THE BOAT IN THE WATER COULD CAUSE EXTREME FLOODING AND SINK THE BOAT OR CAUSE SEVERE WATER DAMAGE TO EQUIPMEN T IN THE BOAT. IMPORTANT WHEN SELECTING THE SPOT FOR THE SEA COCK, BEFORE DRILLING THE HOLE, MAKE [...]

absorbing sea water into the hull. If the hull is "corded," obtain a fiberglass sealing kit from your local marine supplier to seal the cording before installing the sea cock, eliminating the possibility of "water logging" your hull. This is also true of water out thru-hulls. IMPORTANT FAILURE TO SEAL A “CORDED” HULL MAY RES[...]

the seacock, then fasten the 90 degree thread to hose barb, with 5200 on to the ¾ inch nipple. The “closed end nipple” is the bronze threaded pipe open on either end. The water strainer and pump can now be mounted, but first you m ust get each component fully assembled and ready to mount. The water strainer and pum p brackets must be securely [...]

Never screw the pump directly to the hull. If a stringer or other structure is not handy, you may have to fiberglass a mounting board to the hull to accept the mounting screws. Note: If you are supplying cooling water to more than one air conditioner a larger GPH pump is required. Follow the mounting instructions furnished with the larger pump. Als[...]

pump (SEE FIGURE 5). Remember, all water hose connections must be secured using double stainless steel clamps. To install the bleed off valve, attach a short length of blue tracer hose to the water-out on the pump and secure the bleed off valve on the other end of the hose. Attach the blue tracer hose that you are running up to the air conditioner [...]

When installing the thru-hull fitting apply an ample am ount of marine sealant to the outside lip of the fitting and its mounting post. If possible, have someone hold the outside of the fitting to keep it from turning when you attach the retaining nut from the inside. Be careful not to over tighten the nut. Use two (2) s/s hose clamps to attach the[...]

4. Air Ducting and Splitting: Regardless of the btu size of the air conditioner, at least one vent must be within 4 to 5 feet of the unit. Insure though, that the airflo w is not directed back towards the return air grill. In the case of the 16,500 btu unit, the largest grill is required to be the closest grill. Improper ducting accounts for the ma[...]

or two to eliminate sagging. Using tie wraps, insure ducting is appropriately fastened to each supply air grill. Another important consideration is the physical size of the supply air grills. Four inch round grills require a 4.5 inch hole and the duct merely slides over the neck of the grill. A four inch rectangular grill usually measures 4x8 inche[...]

M-24 24,000 140 6. High Pressure Switch Access: All Mermaid marine air conditioners utilize a m anual High Pressure safety switch. This switch monitors the system’s high pressure any tim e the compressor is running. If a condition occurs that causes the system high pressure to rise to a level that could damage the compressor, the switch will acti[...]

light and not directly in front of a "supply air" vent, nor next to a hatch. It is important that the thermostat be located where it is sensing “true” cabin temperature rather than a “dead” spot, or getting incorrect readings from sunlight or sampling air near a constantly opening/closing hatch thereby reading “outside” air ra[...]

• Black wire = “Y” connection on thermostat. This wire is for the cooling mode. 9. Putting it all together: At this point the unit can be placed back into its compartment, and all the power, water hoses and ducting should be available and ready to connect: IMPORTANT DO NOT CUT ANY EXCESS WATER HOSE , WIRE OR DUCTING BEFORE DETERMINING THAT AL[...]

WARNING MAKE SURE THAT ALL AC POWER TO THE BOAT HAS BEEN DISCONNECTED. FAILURE TO RE MOVE ALL BOAT AC POWER COULD RESULT IN ELECTRICAL SHOCK CAUSING SERIOUS INJURY OR DEATH. Determine which power cable is from the pum p (16 gauge cable) and strip the outside insulation back about six inches. Then strip each of the three individual wires back about [...]

recommend that you secure it with one or two 1/2 inch s/s screws along with duct tape or foil tape. Now, attach the return air grill and your installation is completed. B. SYSTEM OPERATION : Note: If the boat has not been placed back in the water, do so now. The air conditioner requires proper cooling water to operate . 1. Priming The Pump: a) Beca[...]

b) Place the main circuit breaker and the air conditioner circuit breaker in their "ON" positions. 3. Water Out: a) Once the air conditioner starts, immediately go out on deck and check that water is coming out of the "water out" thru-hull. Once all of the latent air is f orced from the hoses a steady stream should be present wi[...]

take place. The included mounting pad should eliminate a generous portion of any known / heard vibration. SECTION 3 (OPERATION & PROGRAMMING MANUAL FOR THE MERMAID STANDARD DIGITAL 24V THERMOSTAT) NOTE: THE FX-1 AND NON-PROGRAMMABLE 24V THERMOSTAT MANUAL ARE PROVIDED WITH EACH UNIT A. INTRODUCTION In August of the year 2004 we discovered an unn[...]

Once you have selected the spot, remove the face of the thermostat from the back panel and install by following these instructions: 6. Depress the thumb tab on the bottom of the therm ostat and carefully pull the two pieces apart. 7. Lift the thermostat up and off the subbase. 8. Drill a 1/4 inch hole in the wall and feed the cable through. With th[...]

B. SETTING THE CURRENT DAY AND TIME Open the drop down door on the front of the thermostat. Rotate the dial to the SET DAY/TIME position. You should see the display read 12:00 with a flag pointing to a day of the week flashing. When you are finished setting the day and time, rotate the dial to RUN to return to normal operation or to another positio[...]

VACATION TEMPERATURE HOLD: Press HOLD. Adjust temperature as desired with UP/DOWN. Tem perature setting will not change even after next program period begins. To clear, press HOLD again. SECTION 4 (PUMP RELAY BOX) For use with the Mermaid Standard 24v Controls. The Mermaid FX-1 Thermostat requires a different pump relay box. Contact the Mermaid fac[...]

sufficient amount to properly locate the box when installation is completed. Follow the same installation procedure for this circuit breaker as with the 20 amp air conditioning unit circuit breaker described earlier in the Installation Section of this manual. WARNING THE PUMP RELAY BOX MUST BE IN A DRY NON-EXPLOSIVE ENVIRONMENT. EXPOSURE TO EXPLOSI[...]

11. Locate the WHITE terminal board on the side of the Pum p Relay Box. Using the 16 gage boat cable from the circuit breaker, strip the insulation off about 1/4 inch on the "WHITE" and "BLACK" wires in the boat cable and insert them into the appropriate slots on the side of the terminal board marked "POW ER". Put the [...]

gradually reduce the efficiency and performance of your air conditioner to a point that it will require professional acid bath cleaning. b) When cleaning the filter, also wipe the unit off with a dry cloth to eliminate dust build up. Check that the air ducting has not sagged or loosened around the air collar or air vents. 3. Electrical System: a) U[...]

e) Winterization is now completed. If the boat is to remain in the water, do not reopen the sea cock until you are ready to again use the air conditioning unit when freezing is no longer a threat. WARNING IF THE SEA COCK IS REOPENED WITH THE BOAT IN THE WATER AND FREEZING OCCURS, WATER HOSES MAY RUPTURE AND FLOODING MAY OCCUR CAUSING SIGNIFICANT DA[...]

control box. Though the thermostat has many operational m odes, such as operational programming, tim e of day, etc., all you need to do to operate the basic functions of cool and heat is to put the HEAT-OFF-COOL switch in the applicable position and depress the UP or DOWN ARROW to set the desired tem perature. 2. Heating Options: Mermaid offers two[...]

c) Electric Heat Units: When the HEAT-OFF-COOL switch is placed in the HEAT position and the SET temperature is set above cabin ambient tem perature, the thermostat will activate the heat contactor relay and the fan relay. When the heat contactor relay is activated, 115 vac will be applied to the heater coils through a heater thermal fuse. The heat[...]

d) If both breakers are in the ON position, check to see if boat power source is present. If power source is present, turn on another boat 115 vac accessory to make sure main breaker is operational. e) If main breaker is operational, using an AC voltmeter, check for 115 vac power at the unit electrical box. WARNING ALWAYS USE EXTREME CARE WHEN CHEC[...]

j) After you have removed all 115 (220) vac electrical power , the electrical box cover may be removed by rem oving the three retaining screws on each side of the box. Once the screws are removed the cover will slide off the box. k) Closely check the box for loose or disconnected wires. If all wiring is tight and in place, replace the transformer. [...]

e) Check for any obstructions in the intake or strainer/water lines. Periodic growth of barnicles or accumulated debris may block the water intakes. f) If this is a new installation, check to make sure that pum p, water strainer and sea cock are all below sea level. Pump will not prime if any of these parts are above sea level. Also ensure the caps[...]

8. High Pressure Switch Activates In Cooling Mode: a) Only a lack of cooling water will activate the high pressure switch when the air conditioner is operated in the COOL mode. See paragraph 4 (No Water Out) above. 9. High Pressure Switch Activates In Heating Mode: a) When the high pressure switch activates in the HEAT mode, the evaporator is not b[...]

OUR NORMAL PROCEDURE FOR A WARRANTY ISSUE IS AS FOLLOWS: FIRST AND FOREMOST, DETAIL EXACTLY WHAT THE UNIT IS DOING. NEXT, CALL OUR FACTORY AND ASK TO SPEAK TO ONE OF OUR TECHNICIANS. OUR PHONE NUMBER IS (800) 330-3553. WE HAVE TECHNICIANS AVAILABLE 8-5 EASTERN TIME, MONDAY THROUGH FRIDAY. SORRY, WE HAVE NO TECHNICIANS AVAILABLE ON WEEKENDS. HAVING [...]

INSURANCE ON THE UNIT. THE SECOND SHIPPING OPTION IS TO SIMPLY PACKAGE THE UNIT IN THE BOX WE PROVIDE AND USE ANY OTHER CARRIER OF YOUR CHOICE TO SEND PRODUCT BACK TO US. HOWEVER, BE SURE TO INSURE THE PACKAGE AS WE ARE NOT RESPONSIBLE FOR ANY DAMAGE TO THE UNIT WHILE IN TRANSIT TO OUR FACTORY. YOU MAY SAVE A FEW DOLLARS, AND MORE IMPORTANTLY, TIME[...]

Mermaid Manufacturing of Southwest Florida, Inc. 2651 Park Windsor Drive, Suite 203 Fort Myers, FL 33901 (239) 418-0535 (800) 330-3553 Fax (239) 418-0538 info@mmair.com www.mmair.com[...]