ecocool 100R
Page 15
Operating Manual
www.grantinstruments.com
To continue to use the heating circulator, let the bath liquid cool by at least 5°C, either
naturally or by replacing the liquid, switch the equipment off, wait 10 seconds and switch
it on again to clear the alarm. To avoid nuisance tripping the trip point needs to be set at
least 5°C above the desired control temperature.
5.1.4 Using the heating circulator pump
The heating circulator allows liquid to be pumped around a closed external system (not
open to the atmosphere). It cannot be used for circulation through an external open tank.
The pump is fitted with a blanking plate as standard. Fit a pump connector plate as
shown below. Ensure o-rings are located in the grooves, use silicone grease to hold the
o-rings in place. Note: the blanking/connector plates have a locating hole (see A below)
to assist correct alignment onto the pump moulding. It is important to verify the hole is
aligned with the corresponding locating pin (see B below) on the pump moulding. Failure
to do so will result in a leaking connection. Retain the blanking plate for refitting when
the pump is no longer required.
The equipment is supplied with insulated hose which is designed to operate at
temperatures between -4
0˚C to 100˚C. Suitable high temperature hose (Grant Part No.
HOSE 200) is recommended for temperatures above 100
˚C.
Always use pump connectors and hoses that are suitable for the operating
temperature and liquid used. Check the pipe connections are secure.
Never disconnect any pipes or hoses while they contain very hot or very cold
liquids or while the equipment is pumping.
Never use silicone oil with silicone tubing.
Switch off the equipment when connecting and disconnecting hoses
Pumping heat transfer liquid around an external system can lead to hazards that are
outside the control of Grant Instruments. It is essential that the user conducts a risk
assessment of the entire equipment installation to ensure that correctly rated materials
have been used throughout and that the system can be used safely.
5.1.5 Emptying the liquid tank
The refrigerated bath tank should be emptied to a safe level prior to moving. A drain tap
is provided to allow convenient emptying. See section 5.2.2 and figure 3 for full details.
Liquid to be drained should not be below 10°C or above 50°C
B
A
