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FEATURES & OPERATING CONTROLS 

A. INFINITE SWITCH 

 
 

1.  On INFINITE SWITCH CONTROLLED warmers, power is  

 

 

applied to the heating element based on the control knob  

 

 

position, which varies the duty cycle of the heating element. 

 

2.  The desired temperature is controlled by rotating the            

 

 

TEMPERATURE CONTROL KNOB.  The knob may have a  

 

 

numeric scale, where higher numbers correspond to higher  

 

 

temperature.  LO is the lowest temperature setting; PREHEAT 

 

 

is a “continuous on” setting.  Infinite switch controlled warmers 

 

 

are equipped with a hi-limit device to prevent overheating.  The 

 

 

hi-limit will self-reset after the warmer has cooled.   

 

3.  On warmers equipped with an INDICATOR LIGHT, the light will 

 

 

glow when the infinite switch is in any position other than 

OFF.

 

4.  The TEMPERATURE CONTROL KNOB will rotate without  

 

 

stopping, with PREHEAT and OFF having obvious detents.   

 

 

The OFF position is a “positive” 

OFF

 (i.e. the switch is positively 

 

 

held in the 

open

 position). 

 

 

 

NOTE: 

An infinite switch controls temperature by varying the ratio 

 

of "on" time to "off" time.  Thus, no temperature sensing devise is 

 required. 
 

B. MOUNTING

 

 
 

1.  Modular built-in warmers are be equipped with WELLSLOKS, 

 

 

uniquely designed turnout tabs which help secure the warmer 

 

 

top flange to the countertop.  

 2. 

See 

the 

Installation Instructions

, supplied with the particular           

 

 

appliance, for details. 

 

C. DRAINS

 

 
 

1.    “D” units (e.g. MOD300D) have drains for each pan, with  

 

 

each pan having an individual drain valve. 

 

2.   “DM” units (e.g. MOD300DM) have the individual drain lines  

 manifold together, with a single drain valve for the entire  
 manifold.

 

IMPORTANT: 

DO NOT LEAVE ON 
“PREHEAT”  
Unit may cycle on hi-limit 
control, leading to premature 
failure of the hi-limit control 
device.  

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Summary of Contents for MOD-300D

Page 1: ...S of this appliance Additional manuals are available from your WELLS DEALER THIS MANUAL MUST BE READ AND UNDERSTOOD BY ALL PERSONS USING OR INSTALLING THIS APPLIANCE Contact your WELLS DEALER if you h...

Page 2: ...LE CLAIM FOR DAMAGE IMMEDIATELY Regardless of the extent of the damage 3 CONCEALED LOSS OR DAMAGE if damage is unnoticed until the merchandise is unpacked notify the transportation company or carrier...

Page 3: ...fessional operation and consistent maintenance of this appliance will ensure that it gives you the very best performance and a long economical service life This manual contains the information needed...

Page 4: ...ll rotate without stopping with PREHEAT and OFF having obvious detents The OFF position is a positive OFF i e the switch is positively held in the open position NOTE An infinite switch controls temper...

Page 5: ...before performing any maintenance or servicing This appliance is not jet stream approved Do not direct water jet or steam jet at this appliance or at any control panel or wiring Do not splash or pour...

Page 6: ...dimensions and other installation details refer to the Installation Instructions supplied with the warmer 2 Cutout dimensions for warmer units and control panels are listed on the Installation Instruc...

Page 7: ...temperature rating as well as type size and construction of conduit must meet or exceed applicable specifications of local codes and of the National Electrical Code PLUMBING INSTALLATION For use in t...

Page 8: ...or inset is recommended 2 Infinite Switch Controlled Warmers Turn temperature control to PREHEAT 3 Allow warmer to PREHEAT for approximately 15 minutes then set the control for the desired temperature...

Page 9: ...onment Wells Manufacturing uses an very high quality stainless steel 304DDQ for our food warmer pans Even the highest quality stainless steel however is mostly iron and will rust pit and corrode under...

Page 10: ...r seal Reseal with food grade silicone sealant if necessary Failure to do so may allow grease and water to leak into insulation and heating element causing a potential fire and or electric shock hazar...

Page 11: ...F or higher 3 Pour contents of one package of commercial delime cleaner into each warmer pan Stir to dissolve cleaner Turn heat control OFF Cover pans 4 Allow solution to soak at least one hour or ov...

Page 12: ...r Authorized Wells Service Agency for repairs Warmer slow to heat Mineral deposits on pan acting as a insulator Clean pan s with delime cleaner Wired to wrong voltage Verify supply voltage must match...

Page 13: ...1 2C 30397 WS 53070 w Wellslok P2 33081 w o Wellslok 2H 36050 sold by the foot 2H 36196 sold by the foot WS 50385 2R 44373 OFF L O H I 2 3 4 5 6 7 WELLS P2 307110 P2 303359 P2 48193 WS 55707 WS 50398...

Page 14: ...ets DD 21616 ADAPTER TOP convert 12 x 20 warmer to hold one 7qt and one 4 qt DD 21618 ADAPTER TOP convert 12 x 20 warmer to hold four 2 qt insets 5D 21623 2 QT ROUND INSET w lid NLA 4 QT ROUND INSET w...

Page 15: ...units approved for installation in wood counter tops One well units require one kit Two and three well units require two kits four and five well units require three kits DRAIN VALVE EXTENSION KIT ext...

Page 16: ...WELLS BLOOMFIELD LLC 10 Sunnen Dr St Louis MO 63143 telephone 888 356 5362 fax 314 781 2714 www wells mfg com...

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