mars 83904 HVAC Surge Protection Device Instruction Manual
- June 9, 2024
- MARS
Table of Contents
**mars 83904 HVAC Surge Protection Device
**
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING
Risk of Electrical Shock
- Thoroughly read instructions before installing unit.
- Installation and Service to be performed by a Qualified Licensed Electrician.
- Intended for indoor use.
- All wiring must comply with all state and local electrical codes including the National Electrical Code and/or Canadian Electrical Code.
- This unit contains no serviceable parts.
- This product does not protect against direct lightning strikes.
- Suitable for use on a circuit capable of delivering not more than 10,000 rms amperes 120 volts per line.
- In all applications, NEC recommended maximum Ground resistance should not exceed 25 ohms. Verify ground resistance prior to installation.
Installation:
-
Turn off main breaker to equipment the protector is to be installed and verify power is off with appropriate meter. Remove the ½” knockout in the location you wish to install the SPD.
-
Remove the retaining locknut from the nipple on the SPD83904. Feed the wires and nipple into the ½” knockout hole. Secure the SPD in place with the lock nut.
Indoor Installation
-
Connect the black wire to the equipment black wire.
-
Connect the green wire to the equipment ground wire.
-
Ensure all wiring is correct and securely fastened.
Turn on circuit breaker and verify green light on SPD is “ON”. -
Periodically check LED status lights confirming unit is functioning properly.
Installation tips:
For best performance ensure conductor length is as short as possible. Do not coil excess wire. The SPD functions best if all bends in wires are rounded. Hard 90-degree bends will reduce efficiency.
120Vac two wire single phase Installation
Technical Support800-678-9888