Hortonsservman rev: k – 5/9/06 parts and service manual for merco holding cabinet model mhc-22-tdl garland commercial ranges 1177 kamato road mississauga, ontario l4w 1x4 canada facsimile: (905) 624-5669 telephone: (905) 624-0260
2 sequence of operation specifications model # voltage amps watts hz. Net wt. Lbs./kg plug mhc-22-tdl 120 10.4 1250 60 30/14 nema 5-15p testing values test value ohms on elements 87 ohms amp draw per element 1.3 amps ohms on temp probes / heater plate 4.2 to 5.0 (depending on room temperature) triak...
3 wiring diagram.
4 troubleshooting guide symptom possible cause evaluation holding cabinet will not heat incoming power supply verify power cord is secured firmly in receptacle. Measure the incoming voltage. Check circuit breakers. Reset if required. Call power company if needed. Power switch check continuity betwee...
5 troubleshooting guide (cont’d) display reads unusual characters make sure wires are connected properly (grounded). If wires are grounded properly, new control board is needed. On/off switch doesn’t light (but unit works properly) power switch check wiring to switch. Heat shelf – replacement 1. Dis...
6 parts breakdown label part number part description rec. Stock quantity a 10000940 back panel assembly 2 b 10000935 side panel c 10000988 power board assembly 2 d 86101sp controller, user interface 2 e 27511sp switch, rocker, lighted 2 f 86102sp overlay, control panel g 10000948 bracket, heater sid...
7 general view.
8 merco holding cabinet control panel bin button bin button bin button bin button on / off button time button am / pm button program button temperature button down arrow button up arrow button bin button bin button bin button bin button on / off button time button am / pm button program button tempe...
9 diagnostic mode press and hold down the “temperature” button until you hear a short, double-beep sound. In this mode all displays indicate temperatures for either the upper or lower heaters for each bin. Pressing the “up” and “down” arrow buttons will select the upper and lower heaters respectivel...
10 warranty information coverage period one (1) year parts and labor on-site service from the date of installation or eighteen (18) months from the date the unit is shipped from garland, whichever comes first. Exclusions labor charges will not be paid for travel costs beyond 150 kilometers / 100 mil...
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