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Fan and Heater Circuits- Gas Defrost (optional) <br /> Low Temperature <br /> CIRCLED NUMBERS=PARTS LIST ITEM NUMBERS <br /> R=Red P=Purple 2P=Purple(2 Bands) DB=Dark Blue BK=Black <br /> L.B=Li ht Blue BR=Brown Y=Yellow OR=Oran e W=White <br /> f ('j l O NEUTRAL <br /> 120V FAN DELAY \� <br /> F x FANS rF <br /> 26 <br /> 14 COM F DEFROST <br /> UMtT ROD HEATER DRAIN <br /> Refer to Innovator Reath-!n <br /> ND OOa 25 Glass Door,Installation and <br /> O Service manual,PIN 0425683, <br /> O 6 for Innovator door and frame <br /> RELAY replacement parts. <br /> CONTROL FAN RELAY COIL <br /> 6 con F 24 <br /> DASH <br /> CONTROLLER <br /> LN NEUTRAL <br /> FRAME AS <br /> 13 22 <br /> .TM NEUTRAL <br /> DASH DASH <br /> coNT caNrRaLLFa <br /> DOOR AS <br /> �rA,A f f f�A a <br /> 120V NEUTRAL <br /> SWITCH LIGHTS <br /> 17 �� 20 <br /> 1101111121131! l7i2Ol2ll2224 526 <br /> THE HEAVY LINES DRAWN INSIDE THE TERMINAL <br /> BLOCKS REPRESENT PERMANENT INTERNAL <br /> JUMPERS. <br /> 0 0 <br /> N <br /> 4T <br /> THE HEAVY LINES DRAWN OUTSIDE THE TERMINAL <br /> ,aN d BLOCKS REPRESENT REMOVABLE EXTERNAL <br /> 06JUMPERS. <br /> J a <br /> LL <br /> 3024767_C <br /> Gas Defrost Sequence-Low Temperature <br /> 1. Defrost vapor enters evaporator causing a rise in temperature. At about 35°F the Control Relay Thermostat (5) closes <br /> the Fan Relay Coil (7) and Control Relay Coil (6) circuit. The Coil opens the Fan, Door Heater, and Frame Heater <br /> circuits,while energizing the Drain Pan Heater(9). <br /> 2. If the Drain Pan Heater(9)raises internal air temperature above 90°F,the Heater Limit Thermostat(4)will open. <br /> 3. When the defrost timer ends a defrost period,the evaporator temperature will start to fall. At about 20°F,the Control Relay <br /> Thermostat will open,de-energizing the Control Relay Coil and Fan Relay Coil(7).Control and Fan Relay's will open the <br /> Drain Pan Heater circuits,and will close the Fan,Door Heater,and Frame Heater circuits. <br /> 4. Standard low temperature Reach In cases with Innovator I doors are shipped with the DASH controller for door anti-sweat <br /> heater control installed. Do not connect the DASH controller input to a centralized anti-sweat system. It must be connected <br /> to a continuous 120V circuit for proper operation. <br /> 5. If the case is connected to a centralized anti-sweat controller that meets DOE compliance requirements,the DASH controller <br /> is not installed on the case. Feed the 120V controller output into terminal#12. <br /> 6. Options may be installed that have additional or replacement wiring diagrams. <br /> 7. Reach In cases with Innovator III doors do not have the DASH controller. <br /> P/N 0520869K HUSSMANN CORPORATION•BRIDGETON,MO 63044-2483 U.S.A.•VM.HUSSMANN.COM 7 of 7 <br /> Equip #2, 3 -Page 7 <br />