Energy usage

MexicolderTM

TROPICAL YACHT REFRIGERATION

mexicolder@hotmail.com

Mexicolder Usage Aboard CEILIDH

Measurements

Local

time On Off % on

2100 167 283 37% Thermostat set at 4-3/4

Freezer temperature 23-24 °F

Main box temperature 35 - 38

degrees °F

Vegetable box temperature 55 +/- °F

s/v ceilidh, Catalina 42, April 2004

166 285 37%

0700 149 356 30%

151 362 29%

1115 177 341 34%

175 338 34%

1630 186 285 39%

196 302 39%

2015 184 320 37%

185 332 36%

0820 170 369 32%

168 375 31%

1300 207 326 39%

1800 210 309 40%

2030 195 336 37%

0815 189 379 33%

0730 204 487 30%

Average 181 340 35%

Mexicolder

averaged daily load

40.0 Amp-hr / day

(4.8 amp draw 35% of the time)

 Original Alder-Barbour

averaged daily load

70 Amp-hr / day

(6.0+ amp draw 50% of the time)

Measurement Notes: Box insulation improved to Mexicolder standards, freezer box 2-1/2

size. Ambient daily temperature cycle 70-88 degrees F. Hull side of box in sun from sunrise

to noon. Evaporator (freezer) box and main box kept 1/2 to 3/4 full. Measurements in

seconds & made with stopwatch over several days. System includes 2-inch PVC tubing runs

with a circulation fan to a forward, larger, unimproved box used as vegetable cooler.

Original Alder-Barbour Notes: Old system started up at 7.0 amps for a few minutes then

came down to around 6.1 amps for duration of cycle. Original Catalina box insulation. 65-75

Amp-hr/day agrees with daily observations on a Link 1000 battery monitoring system made

in SF Bay California during summer and cruising Mexico in winter. System 5 years old and

checked to specs in SF Bay by licensed technician before leaving for Mexico. Compressor

seized in Zihuatenajo in December 2003.