Honeywell 

101 Columbia Rd. 

Morristown, NJ 07962 

9/17/2013 

Rebecca von dem Hagen 

Stratospheric Protection Division 

Office of Atmospheric Programs 

U.S. Environmental Protection Agency 

RE: 1233zd- Refrigeration Sector 

Dear Rebecca, 

HoneY'Nell 

In response to your, July 315t, 2013 email, regarding the 1233zd- Refrigeration Sector, I hereby confirm 

that Honeywell does not plan to use 1233zd(E) in consumer applications. 

1233zd(E) Charging and Recovery Example 

Charging: System is leak checked prior to charging. Refrigerant is charged to the previously evacuated 

system by connecting the outlet port of the refrigerant (feed) cylinder to a transfer hose. The hose is 

connected to an Appion Twin GS recovery unit which has the ability to pump liquid or vapor. The unit 

flow rate is adjusted so that the unit runs quietly while pumping liquid. Once the ORC system is 

charged, the ORC system is isolated by closing the charging port valve. Liquid in the transfer line is 

recovered. The attached charging guidance document describes and illustrates several ways to charge 

an ORC system. The document specifically mentions R-245fa but is applicable to 1233zd(E) as well. 

Recovery: An Appion Twin GS recovery unit is used to recover refrigerant from the system. This device 

can handle liquid and vapor recovery. A refrigerant transfer hose is connected from a low point in the 

system to the inlet of the recovery unit. The outlet of the recovery unit is connected to a recovery 

cylinder using a transfer hose. The charge is recovered and the recovery unit is run to vacuum level 

before ending the procedure. The Appion GS Twin Recovery Machine manual (embedded file) 

describes/illustrates recovery methods. 
BIITiiill. 

OPERATION MANUAL 

~..=.

Engineering Controls: The ORC test rig is located in a test cell with a ceiling height in excess of a single 

story. The ventilation exhaust is rated for 21,000 cubic feet per minute. The airflow at floor level is 

significant and obvious (readily feel airflow). The ventilation system provides multiple air changes per 

hour. 

PPE: Refrigerant Vapor-in-air concentrations are well below the PEL. No respiratory protection is worn 

during charging or recovery. The only PPE worn are work gloves as needed. 

Other potential for exposure: System leak repair may put a system operator or technician in a work 

space where there is airborne refrigerant. If the leak is small such that airborne concentrations are low 

and repair is simply a matter of tightening a fitting, the work may be conducted without interrupting 

system operation. Good practice dictates that for a significant leak or where a system component or 

piping must be replaced, the system be shut down and the affected piping section isolated, if possible. 

The charge is removed from the isolated section or, if the section cannot be isolated, the entire system 

charge is moved to the system receiver (if so equipped) or is removed to a recovery cylinder. At that 

point, repairs can commence. 

Charging Quantitv: The total quantity of refrigerant being charged and discharged, associated with the 

monitoring data, was 20-251bs. The most typical charge size would be 450 kg that is used in GE systems 

however, the range of ORC charge sizes can be anywhere from 10 kg that is used in long haul trucks, all 

the way to 75 tons used in geothermal ORC systems. 

Sincerely, 

Katarzyna Bober 

Product Stewardship Leader 

Honeywell