30934 V2
R Series
Page 5
Operating Manual
www.grantinstruments.com
4.0 Operating instructions
4.1
Unpacking instructions
Standard equipment includes:
R series refrigeration unit with lid
Communications cable (except R1 & R1L)
Interconnect mains power cable (R1, R2 & R3 only)
Mains cord with plug (R4 & R5 only)
Operating manual
R series refrigeration units weigh between 20kg and 47kg. Take necessary
precautions when moving and lifting.
Remove packing materials carefully and retain them for future shipment or storage of the
equipment.
4.2
Fitting the controller to the R unit
The Optima unit can be fitted in two orientations on the R unit facing over the tank
opening or outwards
1. Remove the bridge plate from the R unit tank by unscrewing the four black thumb
screws.
2. Fit the Optima unit through the hole in the bridge plate and align using the locating
threads. Secure using the retaining nuts. Hand tighten only.
3. Re-attach the bridge plate onto the R unit, using the retained black thumb screws.
4.3
Recommended liquids
The following table lists the recommended liquids for different temperature ranges.
Always ensure the liquid used is safe and suitable for your working temperature. If using
non-recommended heat transfer liquids, it is the responsibility of the user to conduct an
assessment to ensure the intended fluid is compatible with the R unit. If in doubt please
contact the Grant technical support team.
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