Will the ER-230 and ER-460 fit the hole patterns in my existing trailers?
The standard ER-230 and ER-460 units fit any “wide” hole pattern designed for a Thermo King SB™ or a Carrier TRU™ (transport refrigeration unit). Versions are also available in special cases for “narrow” hole patterns designed for Thermo King Super II™ , and even NWE™ or Sentry™ units (which require minor trailer modification).

What type of controls do the ER-230 and ER-460 have, and are they easy to use?
Safe, easy, low-voltage (24V) commercial-style controls are used. Units are well marked, and there is ample support documentation available.

How well do the ER-230 and ER-460 cool and heat, and what temperature ranges will they hold?
The units have a very high capacity and perform extremely well in both the cooling and heating modes. Temperature operating range is -20°F to 80°F in most cases.

What are the voltage ranges for the ER-230 and ER-460?
The units are designed to be “voltage tolerant.” ER-230s run on a range from 208V – 240V. ER-460s run on a range from 460V – 480V.

What are the electric power supply requirements and service size?
Power must be 3-Phase. (Units cannot operate on Single-Phase.) For ER-230s we recommend a 60A service with a continuous running supply of 30A. For ER-460s we recommend a 30A service with a continuous running supply of 15A.

Can I run my ER-230 on a plug wired for 460V?
No, the units are designed specifically for either the 230V or 460V range.

What is the warranty?
The warranty is one year for all components.

What parts of the ER-230 and ER-460 are remanufactured and what parts are new?
Frames, top skins, and coil sets are reconditioned, tested, and remanufactured. The refrigeration and electrical system are new.

What is a hermetically sealed scroll compressor?
A hermetic refrigeration system is a compressor coupled with an electric drive motor that is sealed as one component. Scroll compressors are highly efficient, run smoothly and consume less power than traditional reciprocating compressors.

How much does shipping cost?
Shipping costs typically range from $100 to $300 per unit, depending on the destination in the United States.

How much does an ER-230 or ER-460 cost to run?
Utility costs will vary depending on your location, but the average cost is $1.00 per running hour for electricity consumption.