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Fan and Heater Circuits — Electric Defrost (standard) <br /> Low Temperature <br /> Wiring Diagram is per side — two circuits required per case. <br /> CIRCLED NUMBERS=PARTS LIST ITEM NUMBERS <br /> R=Red P=Purple 2P=Purple(2 Bands) DB=Dark Blue BL.=Black <br /> LB=Li ht Blue BR=Brown Y=Yellow OR=Oran e W=White <br /> COLORSTHESEARE MARKER <br /> 208V 208V <br /> Evaporator Fan O 4 <br /> I Relay Coil t <br /> CAUTION: When multiplexing <br /> 1 R 1��3 R [} merchandisers equipped with defrost <br /> heaters,if branch circuit overctrrent <br /> Rear Defrost Heater® protection is larger than the <br /> 2 R R 8 individual merchandiscr's defrost <br /> circuit load,then additional <br /> Front Defrost Heater Og tu <br /> supplemental overcrent protection <br /> 3 R R 7 may be required per NEC Articles <br /> Defrost Limit G 210 and 240. <br /> 6 BKBK 5 <br /> O.O.R. <br /> N.C. NEUTRAL <br /> 120V POWER <br /> Fan RelayO I <br /> F Evaporator Fens log r <br /> I N.C. BR26 <br /> Refer to innovator Reach-/n <br /> 14 BK coM Fan Relay O Glass Door,Installation and <br /> Rod Heater(Drain)O9 Service manual,P/N 0425683, <br /> F Nj O-0=Y o-VVVVo Y 25 for Innovator door and frame <br /> A.S.Relay O replacement parts. <br /> Relay Control O Coil <br /> 16 BK c.ox. 3 C ' w 24 <br /> A.S.RelayO <br /> A.S. <br /> 13 BK—COMCOMMC I f Hib BK 10 <br /> Frame A.S.Heaters <br /> 120V POWER NEUTRAL <br /> 4 Refer to Innovator : 4 11 P P 22 <br /> I Switch <br /> / 'Door Manual for I Door A.S.Heaters Defrost Termination O2 <br /> 17 <br /> OR <br /> O—�Lighting Diagrams-r OR 2,0 12 2P 2P '1,1 Thermostat <br /> FEELD WIRED Defrost Termination Refrigeration <br /> Thermostat 2 Thermostat <br /> —DB----- 0,� C.O.R. DB— (Optional) <br /> Low Temperature with Terminal Blocks in Raceway Pink <br /> Electric Defrost l To <br /> I I I I I I I I I I I I I I I I I I I J}Condensing <br /> R R R R BK BK R R BK P 2P BK BK BK OR OR 2P P W Y BE Unit <br /> 1 2 3 4 5 6 7 8 10 11 12 13 14 16 17 20 21 22 24 25 26 Dark Blue <br /> Permanent Internal <br /> Jumpers DEFROST HEATERS Removable Extemal FANS&A.S.f 1.10", taches FANS&A.S.(Neutral) <br /> (208V) Jumpers (120V) (120V) (Neutral) <br /> Electric Defrost Sequence-Low Temperature <br /> I. Power from the defrost contactor energizes Defrost Heaters and 208V Evaporator Fan Relay Coil(7). Relay Contacts open the fan <br /> circuit and energizes the Drain Pan Heater. <br /> 2. If the Defrost Heater raises internal air temperature above 90°F,the Defrost Limit Thermostat(4)will open. <br /> 3. Temperature rise of the evaporator closes the Relay Control Thermostat(5)at about 35°F,energizing 120V A.S.Relay Coil(6).This <br /> relay's contacts open the Frame and Door Heater Circuits. <br /> 4. When Defrost Termination Thermostat ends defrost period,the defrost contactor opens the Defrost Heater and Evaporator Fan Relay <br /> Coil Circuits. The Drain Pan Heater goes off and fans are on. <br /> 5. Temperature fall of the evaporator opens the Relay Control Thermostat(5)at about 20eF,de-energizing 120V A.S.Relay Coil(6). <br /> A.S.Relay Contacts close the Frame and Door Heater Circuits. <br /> Wiring Diagram is per side—two circuits required per case. <br /> 6 of 8 HUSSMANN CORPORATION,Bridgeton,MO 63044-2483 U.S.A. RLNI with Innovator Doors Technical Data Sheet <br /> Equip #1, 4; 5 -Page 6 <br />