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Environmental
Series
Air Curtains
INSTALLATION & OPERATING INSTRUCTIONS & PARTS MANUAL
FOR ALL 120 and 220 VOLT
1/4, 1/2 AND 3/4 H.P. MOTOR MODELS
READ CAREFULLY BEFORE ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE, OR MAINTAIN THE
PRODUCT DESCRIBED. PROTECT YOURSELF AND OTHERS BY OBSERVING ALL SAFETY INFORMATION.
FAILURE TO COMPLY WITH INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY
DAMAGE!
RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.
REFER TO INDIVIDUAL MODEL NUMBERS
1
FOR UNIT WIDTH 12
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Unpacking (Continued) 3. Carefully remove cabinet from carton by lifting out unit using straps provided. CAUTION: Do not attempt to lift this air curtain by its louver or damage may result. 4. Unscrew six (6) knurled nuts and remove air intake grille. (See Figure 3.) Figure 4 - Removing Motor/Blower Assembly 6. To remove motor/blower assembly, lift from rear of motor housing to prevent damage and misalignment to shaft and blower wheels. NOTE: Unit is shipped with styrofoam motor support block wh
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Installation 1. Using template provided, determine mounting 3. Remove two screws from switch box and remove location. cover. 2. Drill holes and attach mounting hardware (not NOTE: Motor is prewired to high/low toggle switch. (See included). wiring diagram, Figure 5.) IMPORTANT: THE HARDWARE AND THE 4. Run wires from power supply to switch box using SUPPORTING STRUCTURE MUST BE CAPABLE OF appropriate wiring according to local code. (Use a SUPPORTING A MINIMUM 150 LB. LOAD. flexible connector to a
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Operation 1. After power has been connected to unit, fans will start NOTE: Air direction settings are shown in Figures 6, 7, in either preset (high/low) speed selection. and 8. 2. Air velocity is controlled by selection of high or low IMPORTANT. IN FREEZER APPLICATIONS, UNIT IS speed indicator. This feature allows the setting of air ALWAYS MOUNTED OUTSIDE (WARM SIDE) OF velocity to individual desired performance and energy FREEZER OR COOLER. efficiency. NOTE: Cold air will try to escape near f
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Troubleshooting Chart SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Fan inoperative 1. Blown fuse or open circuit breaker. 1. Replace fuse or reset circuit breaker. 2. Electricity turned off. 2. Contact local power company. 3. Loose cord connection. 3. Re-check all connections. 4. Defective capacitor or motor. 4. Replace. Excessive noise 1. Wheel rubbing on housing. 1. Center wheel. 2. Motor base or blower not securely 2. Tighten mounting bolts. anchored. 3. Replace motor. 3. Defective motor beari
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Replacement Parts For Air Curtain Cabinets 1. 3 6 5 4 2 Figure 9 - Replacement Parts Illustration. Replacement Parts List For Air Curtain Cabinets Key Part Numbers for Cabinets (length) No. Description 36" 38" 42" 48" 60" 1 Cabinet box assembly ACCA36A ACCA38A ACCA42A ACCA48A ACCA60A 2 Cabinet Intake Grille API3685 API3885 API4285 API4885 API6085 3 Cabinet Intake grill knurled nut AP0002 AP0002 AP0002 AP0002 AP0002 4 Cabinet louver kit ACL36 ACL38 ACL42 ACL48 ACL60 5 Electric box ACEB ACEB ACEB
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Replacement Parts 14 12 For Motor Blower Assemblies (7) 11 13 16 15 8 10 9 Figure 9 - Replacement Parts Illustration. Replacement Parts For Air Curtain Cabinets Key Part Numbers for Motor Blower Assemblies No. Description 1/4HP 1/2HP 3/4HP 7 Motor/Blower Assembly 120V 1-ph ACMB125 ACMB150 ACMB175 220V 1-ph ACMB225 ACMB250 ACMB275 208-230/460V 3-ph ACMB325 ACMB350 ACMB375 8 Switch plate cover ACFPSH ACFPSH ACFPSH 9 Rocker switch C1220 C1220 C1220 10 Cord, female plug ACW316 ACW316 ACW316 11 Moto
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LIMITED WARRANTY All products manufactured by Marley Engineered Products are warranted against defects in workmanship and materials for five years from date of installation. This warranty does not apply to damage from accident, misuse, or alteration; nor where the connected voltage is more than 5% above the nameplate voltage; nor to equipment improperly installed or wired or maintained in violation of the product’s installation instructions. All claims for warranty work must be accompanied by pr
