Storage Prior To Installation; Water Supply; Electric Supply; Unpacking The Unit - EHC NEPTUNE NINDSL90L Installation & Maintenance Instructions Manual

STORAGE PRIOR TO INSTALLATION

The EHC Neptune should be stored in its original packaging
in an upright position in an area free from excessive damp.
Regulations G3+L.
HANDLING PRODUCT
The EHC Neptune should be carried upright where possible.
Assessments of risks for carrying the cylinder should be
conducted. Use more than 1 person for carrying where
appropriate. Always follow latest guidelines for lifting
techniques, to avoid injury and damage to the product.

WATER SUPPLY

The EHC Neptune operates at 3 bar (controlled by the inlet
control set) and is capable of delivering over 50 litres per
minute. The high quality inlet control set has been designed
to make the most of the low rates available, however the
performance of any unvented system is only as good as the
mains water supply. The maximum possible water demand
should be assessed, taking into consideration that both
hot and cold services are supplied simultaneously from the
mains.
The water supply should be checked to ensure it can
meet these requirements. If necessary, consult the local
water company regarding the likely pressure and low rate
availability.
If measuring the water pressure, note that a high static
(no low) mains pressure is no guarantee of good low
availability. In a domestic installation 1.5 bar and 25 l/min.
should be regarded as the minimum. The maximum mains
pressure that the inlet control set can accept is 12 bar.
Consideration should be given to upgrading existing
½" (15mm) cold mains pipework to a larger size if the
recommended minimum pressure/low rate is not being
achieved.

ELECTRIC SUPPLY

The EHC Neptune requires 240 Volt electrical supply for
the immersion elements. The electrical supply to each
immersion heater must be fused at 13A via a double pole
isolating switch to BS 3456. The cable must be at least
2.5mm 2 heat resistant (85°C HOFR) sheathed lex complying
to BS 6141:1981 Table 8.
UNVENTED HOT WATER CYLINDERS

UNPACKING THE UNIT

The EHC Neptune comes complete with the ittings required
to complete the installation. Please see over for component
content list.
High low rate inlet control set - 3 bar
PRV 6 bar Expansion Relief
Spare Part No. CB091
Temperature and pressure relief valve
Spare Part No. CB098
Acetal tundish 15 x 22 mm
Spare Part No. CB096
Expansion Vessel
• 60- 250 ltr units - 18 ltr vessel
Spare Part No. CB144
• 300 ltr units - 25 ltr vessel
Spare Part No. CB145
Two port valve
Spare Part No. EC10008
Incoloy long life
3 kW immersion heater
Spare Part No. CB099
Dual thermostat
Spare Part No. CB142
High limit thermostat
Spare Part No. CB135
EHC NEPTUNE 02