Related Manuals for WFCO EM-15
Summary of Contents for WFCO EM-15
- Page 1 Installation & Operator’s Manual EM-15 / EM-20 Energy Management Switch WF-9900 Series...
-
Page 2: Table Of Contents
Mounting the EM-20 Remote Control ..................9 EM-15 / EM-20 WIRING System Wiring Diagram ......................10 Internal EM-15 / EM-20 Wiring ....................11 Wiring Instructions ........................12 Air Conditioner Logic Wiring for the EM-20 ................. 12 EM-15 / EM-20 TROUBLESHOOTING ............... 13 SPECIFICATIONS ...................... -
Page 3: Em-20 Operation
!IMPORTANT! All wiring must conform to local, national, and regional regulations. Use copper conductors only for all wire connections. Do not exceed the electrical ratings for the EM-15 / EM-20 or the equipment connected to it. !CAUTION! This product should be installed by an experienced technician. -
Page 4: Modes Of Operation
15A breaker (for example: a microwave and a fireplace or water heater). This mode of operation functions as follows: Power is applied to the EM-15. After a short delay of approximately 4 seconds, power will be supplied to both the primary and sec- ondary circuits. -
Page 5: Power Relay Mode W/ Short Delay
EM-20 Power Relay Mode w/ Short Delay: This mode shall be used when two appliances (without compressors) are sharing the same circuit breaker (for example: a microwave and a fireplace or water heater). Power is applied to the EM-20. After a short delay of approximately 4 seconds, power will be supplied to both the primary and secondary circuits. -
Page 6: Logic Relay Mode W/ Long Delay
EM-20 Logic Relay Mode w/ Long Delay: This mode shall be used when attempting to combine two air conditioners on one 20A breaker. These air conditioners shall be equipped with energy management system inputs and have the ability to use logic relays for compressor control. THIS MODE SHALL BE SELECTED IF THE AIR CONDITIONER CONTROL CIRCUITRY DOES NOT PRO- VIDE THE NECESSARY OFF-TIME DELAY ITSELF TO PREVENT SHORT CYCLING THE COMPRESSOR. -
Page 7: Remote Panel Functions
EM-15 / EM-20 INSTALLATION Mounting the Enclosure The EM-15 / EM-20 has primarily been designed for three different mounting configura- tions. A simple rotation of the mounting bracket facilitates the different configurations. 1. Wall/Floor Mounting. 2. Back of WFCO WF-89xxPEC Power Centers. -
Page 8: Mounting To A Wall Or Floor
No bracket is necessary. The mounting holes for the bracket on the EM-15 / EM-20 have corresponding holes on the back of the 85xx series power centers. Remove the brackets and use the bracket screws to mount the EM-15 / EM-20 directly to the back of the power center. -
Page 9: Mounting The Em-20 Remote Control
Mounting the EM-20 Remote Control The remote-control panel should be mounted in an easily accessible location. The supplied remote cable shall be routed from the remote location to the EM-20. -
Page 10: Em-20 Wiring System Wiring Diagram
EM-15 / EM-20 WIRING System Wiring Diagram For 20A applications, use 12AWG copper conductors only. For 15A applications, use 14AWG copper conductors only. -
Page 11: Internal Em-15 / Em-20 Wiring
Internal EM-15 / EM-20 Wiring For 20A applications, use 12AWG copper conductors only. For 15A applications, use 14AWG copper conductors only. -
Page 12: Wiring Instructions
Remove the lid and put it in a temporary safe place. • Feed Romex cable from the 15A (for EM-15) or 20A (for EM-20) circuit breaker into the centrally-located cable clamp. Connect Black wire to TB1 (AC Input / Line). -
Page 13: Em-20 Troubleshooting
The air conditioner logic wiring chart assumes the air conditioner expects a relay contact closure when the compressor should be off. Please refer to the air conditioner manufacturers manual for more information. EM-15 / EM-20 TROUBLESHOOTING Symptom Potential Reason Action to Perform No power on both circuits. -
Page 14: Specifications
128 x 112 x 73 mm / 5.04 x 4.41 x 2.9 in (L x W x H) Weight: 0.55 kgs / 1.21 lbs Mounting: Wall/Floor mounting or mount directly to the back of WFCO Power Centers (8900 or 8500 Series) Remote Switch 12 ft long wire and RJ11 connector; 1 switch to set circuit (EM-20 ONLY): priority;... -
Page 15: Timing Diagram Example
APPENDIX A Timing Diagram Example... -
Page 16: General Compliance Information
GENERAL COMPLIANCE INFORMATION AGENCY Listings The EM-15 / EM-20 Series units are ETL listed for the United States and Canada. FCC Compliance Class B: NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.