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Recovery Unit for
Flammable Refrigerants
NRDDF
User Manual
Certifications
General Safety
Operation Manual
Specification
Introduction of Operation Panel
Parts Diagram
Wiring Diagram
Operating Instruction
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CERTIFICATIONS
Design standard:
UL 121201: Ninth Edition
CSA-C22.2 No.213-17
UL 1963: Fourth Edition
CSA-C22.2 No.120-13
IEC: 60079-0, 60079-7
IN ACCORDANCE WITH SECTION 608 OF THE CLEAN AIR ACT:
THIS EQUIPMENT HAS BEEN CERTIFIED BY UNDERWRITERS
LABORATORIES INC. TO MEET EAP’S MINIMUM REQUIREMENT
FOR RECOVERY EQUIPMENT INTENDED FOR USE WITH
CATEGORY III, IV, AND V REFRIGERANTS OUTLINED IN
AHRI-740-98, TABLE 4.
Marking:
Class I, Division 2, Group D T4
WEEE
(Do not dispose through
typical waste streams)
1). Refrigerant Hoses Exhaust
2). Recovery Mode
3). Self-purge Mode
4). Liquid Push/Pull Mode
Trouble Shooting
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In order to prolong the life cycle of the recovery unit, please read the manual carefully before using to fully
understand the safety, specification as well as operating procedure of the recovery unit.
For recovering only HVAC/R refrigerants from sealed HVAC/R systems. Warranty VOIDED if used for any
other purposes.
Only a qualified technician should operate this recovery unit.
Before starting the equipment, make sure that it is well grounded.
If using electrical extension cord, the cord must be in good condition and properly connected and grounded.
Only a qualified electrician can do the wire connection according to the technical standard and circuit diagram.
The power must be cut off and no display in LCD before inspecting or repairing.
If the original power supply cord is damaged, an OEM replacement may be ordered through your NAVAC
distributor.
Please check the capacity of your power supply, ammeter, electrical wires and circuit before use.
A dig ital scale is needed to prevent overfilling.
Before connecting, be sure to turn on the refrigerator to check:
1. If the fan is working properly (if there's air blowing out from the condenser side).
2. Connect the check valve to the outlet port and close the check valve. Keep the inlet port open to
atmosphere. Turn the knob to the "FAST" position and start the machine. The pressure on the outlet side
should rise to 560Psi (38.6bar) within 65secs. After that, the high pressure switch protection switch is on,
and the machine will automatically shut down.
The equipment is intended for serving air-conditioning and refrigeration systems containing less than 200 lbs
of high-pressure refrigerant.
The tank and hose used must comply with the local regulations.
0302
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