Table of Contents
Advertisement
Advertisement
Table of Contents
Troubleshooting
Summary of Contents for Mermaid REFRIGERATION/FREEZER
- Page 1 KOOL-TEMP ™ MARINE REFRIGERATION/FREEZER UNITS INSTALLATION INSTRUCTIONS AND OWNER’S MANUAL PRODUCED BY: MERMAID MANUFACTURING OF S.W., FL, INC. 2651 PARK WINDSOR DRIVE SUITE 203 FORT MYERS, FL 33901 800-330-3553 239-418-0535 – P 239-418-0538 – F INFO@MMAIR.COM...
-
Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1 (OVERVIEW) A. Introduction to Mermaid SECTION 2 (INSTALLATION) A. Mounting Position B. Installation SECTION 3 (CONTROL MODULE) A. Electronic Control Module B. 12/24VDC, 12/24VDC & 110V w/ Auto-Changeover SECTION 4 (SAFEGUARDS) A. Low Voltage B. High Voltage C. -
Page 3: Section 8 (Electrical)
As you will come to find, Mermaid Marine takes great pride in the products and services they provide to their customers. Mermaid believes there is no such thing as enough customer service and, in today’s market, this is a must! Whether you purchased... -
Page 4: Mounting Position
Mermaid’s 12/24VDC model or our 12/24VDC & 110V with Auto Change-Over model, we are sure you will be pleased with their performance. Mermaid provides a one-year warranty on the refrigeration/freezer products and a five- year warranty on their marine air conditioning line. In the unlikely event of any issue, Mermaid will take the necessary steps to ensure your complete satisfaction. -
Page 5: (Control Module)
24v mode if the voltage is above 17v. The Mermaid unit is also available in 12/24v & 110v with Auto Change- Over. Should this be your model, the unit will automatically detect either 110v or 12/24v. -
Page 6: Compressor Non-Start
C: Compressor Non-Start: If the compressor does not start, the Module will stop the starting process, & attempt a re- start every 60 seconds. D: Compressor Speed Too Low: If the compressor speed falls below 1900 RPM the Module will stop the compressor. E: Fan Protection: If the current draw across the fan terminals exceeds 0.7 amps 12v dc, the compressor will be stopped &... -
Page 7: (Evaporators)
NOTE TWO The Electronic Module, although designed for harsh & marine applications, can be damaged from either direct or incidental contact with water, & by water flowing down wires attached to the terminals. When attaching wires to the terminals on the Module, make sure that all wires approach from below the terminal, &... -
Page 8: Thermostat Sensing Tube
The entire unit – including the dial – may be installed in the refrigerator/freezer box if necessary. If you choose to mount the controls external of the box, ensure that a majority of the capillary tubing is inserted into the box. Without the capillary sensing tube, the thermostat will not operate effectively. -
Page 9: Operation
(QUICK CONNECT REFRIGERANT CONNECTIONS) A: Note: Each component of the Mermaid condensing system is fitted with one male & one female Quick Connect fitting that connects with a corresponding fitting on other components of the system. The individual items (condenser and evaporator) are charged with the correct amount of refrigerant at the factory, &... -
Page 10: Connection The Quick Connect Fittings
& does not fall appreciably. This test should be conducted with as many other DC loads turned on as is practical. Each model Mermaid produces is pre-wired and tested for voltage drop. It is not necessary to change any wiring connections made at the factory unless damaged during installation. -
Page 11: Wire Size
Use either a breaker or fast-blow fuse with 15 amp rating for a 12/24v supply, and/or a 8 amp fuse for the 110v a/c side. (These items are provided on new installations from the Mermaid factory). D: Connections, Power: If wiring from the factory needs to be removed, connect the power supply to the Module to the top two terminals, observing the correct polarity. -
Page 12: Compressor Not Running, No Start Attempt
(3) Run all applicable tests before assuming Module or Compressor to be faulty. B: Compressor Not Running, No Start Attempt. Probable cause Supply voltage too low Supply voltage too high Polarity incorrect Faulty thermostat Thermostat wired incorrectly, or faulty connections. Multi-speed board incorrectly installed (if fitted) -
Page 13: System Runs, Box Temperature Too High
Check that all refrigerant fittings are connected together properly. Rotate thermostat knob clockwise to a higher number. Check that thermostat leads are connected to the speed setting recommended for the evaporator that is installed, & for its use i.e. refer or freezer. -
Page 14: 5 Excessive Frost Build-Up
7 Drain left unplugged 8 Tubing hole left unplugged If you are planning to convert your ice box into a freezer, or as a spillover system, a freezer thermostat (0021) must be used. If the evaporator has an even coating of frost, the thermostat is set on 7, &... - Page 15 This method will also increase hold-over times. If you are running the evaporator as a freezer, & cooling an adjoining refrigerator compartment with some spillover air, there must be an adequate thermal barrier between the two, & it must be properly sealed to prevent unwanted air-flow.
- Page 16 F: Excessive Frost Build-Up: Note: This is the result of moist air being allowed to enter the box. Problems are compounded when cold air leaks from the lower area of the box & is replaced by warm, humid air entering elsewhere. 1 Drains &...
- Page 17 DANFOSS COMPRESSORS 12/24V AND 12/24V W/ 110V...
- Page 18 WIRING OF DANFOSS ELECTRONIC MODULE 12/24V FOLLOW THE WIRING DIAGRAM ABOVE AND DESCRIPTION BELOW TO MATCH WIRES. THE 12/24 + 110V MODELS WILL HAVE AN ADDITIONAL POSITIVE (L) AND NEUTRAL (N) SYMBOL FOR THE TWO 110V LEADS. MM1 AND MM2 12/24V MODELS: (-) NEGATIVE LEAD = (+)POSITIVE LEAD = (+)POSITIVE LEAD =...
Need help?
Do you have a question about the REFRIGERATION/FREEZER and is the answer not in the manual?
Questions and answers