Evaporator Plates

FEATURES ---------------
  • Grunert stainless steel dry Evaporator Plates provide an effective solution for cooling cockpit freezers, drink boxes and custom refrigeration applications.
  • Evaporator plates are a cost effective solution when holdover systems are not required.
  • Evaporator plates can be specified for both refrigeration and/or freezer applications.
  • Minimal plate thickness (9/16”) allows for a clean, wall to wall installation inside any box.
  • Plates are constructed of 20 gauge #304 stainless steel for strength and a #3 finish for aesthetics.
  • Refrigerant connections are constructed of 3/8” O.D. copper tube. Optional flare quick disconnect (QD) or swagelok fittings are available upon request.
  • Properly sized plates will rapidly lower and thermostatically maintain box temperature on demand. Properly insulated boxes will maintain desired temperatures with minimum compressor duty cycles.

* * Plate height and width may be any dimension between minimums and maximums shown in chart.
Capacities should be calculated by rounding down customer plate dimensions to the next lower numbers on the chart.
See tables on back of this sheet to determine BTU gain per hour for refrigerators and freezers.
Height dimensions given include the 3/4” mounting flange on either side of the plate.
Installation Guidelines for Baysider
When choosing the proper plate sizes, primary consideration should be given to calculated BTU loads as well as box design and usage. Any special requirements must be determined prior to selection and installation.

Evaporator plates may be used for freezer or refrigerator box applications. Plates must be specified for horizontal or vertical operation and must be oriented correctly when mounting. Vertical plates must be mounted with the refrigerant connections going up or down. However, in either case, the refrigerant must feed into the tube on the right. Horizontal plates must be mounted with the refrigerant connections going left or right. However, in either case, the refrigerant must feed into the bottom tube. Either may be used as a shelf across the interior surface. Each plate has mounting flanges with 1/4” diameter holes for securing the plates.

Plates must be mounted with stand-offs to expose the back surface area of the plate to provide proper performance.

A minimum of 5/8” (1.6cm) clearance between the box and the back of the plate is recommended.

Expansion valves must be located and fastened properly. Do not install expansion valves with the diaphragm on the bottom. Recommended location of the valve is in the box with the plate(s). The expansion valve sensing bulbs are to be properly located and secured on the outlet (suction line) of the plate(s) in series. Recommended location is on a horizontal portion of tubing on the top (between ten and two o'clock). If either the expansion valve or its sensing bulb must be located outside of the box, each part must be properly insulated to protect against condensation, as well as to allow accurate temperature sensing of the bulb.

Information needed when ordering dry flat evaporator plates:

1) Measure internal dimensions of refrigerator/ freezer box.
2) Calculate internal volume of box ((see example below).
3) Measure thickness of insulation around box.
4) Use appropriate chart below to get BTU/Hr gain.
5) See charts on front of this sheet to determine which plate(s) will fit your application.
6) Type of plate needed:_______horizontal_______vertical
7) List dimensions of plate(s), (width x height) ______” x______”.
8) Will plates fit through the opening of the box: yes/ no.
9) Length of refrigerant connections (8” is standard) ______”.
10) Location of connections on horizontal plate, top/center/bottom
(center is standard)__________.
Location of connections on vertical plate, left/center/right (center is standard)__________.
10) Fitting type:____flare____QD____Swagelok®____none

48 Example Circled: A 10o freezer box with inside dimensions of 24” height, 12” depth and 18” width has an internal volume of 5184 cubic inches (24x12x18). Divide the 5184 cubic inches by 1728 (one cubic foot) to get three cubic feet. With 4 inches of insulation, a 48 BTU/Hr gain is found on the chart. Referring to the capacities charts on the front of this sheet, two 12x12 horizontal (48 BTU/Hr), two 13.5x10.5 vertical (48 BTU/Hr), one 12x23.25 horizontal (50 BTU/Hr) or one 13.5x21.75 vertical (50 BTU/Hr) plate(s) may be used.

* To convert cubic meters to cubic feet, multiply by 35.31

** Two pound density poly-foam insulation with an R value of 5.5 and ambient temperature of 95į F.

In the interest of product improvement, Marine Air Systems' specifications and design as outlined herein are subject to change without prior notice.

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