J&E Hall BSCU-30-M1, Technical Manual

Page: 15 / 35

Issue: 01.07.2020 Page 15
Installation
Drainage
The drain fitting is aluminum alloy with a 3/4” BSP male thread. A locknut and an aluminium washer are supplied to secure to the
drain pan. The locknut only requires hand tightening and then pinching up with a spanner. Do not over tighten or the threads may
strip from the nut and also damage the tray. To fit the drain fitting, remove the drip tray (unscrew the seven screws that secure
it), locate the fitting then refit the tray. The correct way to fit the drain fitting to the drain pan with aluminium washer and
locknut can be seen in the diagram below.
A minimum suggested size of drain from the
indoor unit is 20mm or 3/4”. This can be either copper or plastic. Flexible hose is not
recommended as it can easily kink causing a blockage and water to back up in the unit.
Important Note:
The evaporator drain pan fitting is supplied loose and must be fitted on site. It is attached to the
indoor unit fan guard with a cable tie. Correct fitting is vital to ensure leak
– free operation. The lock
nut on the drain fitting must be fitted the right way around; otherwise it will not tighten against the
drip tray. One side of the nut has an angled recess – this must be facing towards the drip tray. The
fitting does not require any sealant but a small amount of silicon sealant can be applied between the
flared face of the fitting and the drip tray if so desired.
1 DRAIN FITTING
2 DRAIN PAN
3 ALUMINIUM WASHER
4 LOCKNUT
1
2
3
4