Warranty - Hitachi RASM-2VRE Installation And Setup

Please check the following before commencing startup as they are important conditions of the Hitachi warranty.
• A magnetic filter must be installed in the return pipe as close as possible to the system inlet. Do not
switch the system on without this.
• Power must be supplied to the unit for at least 8 hours before operation in order to heat the compressor
sufficiently for first use. Do not start the compressor up from cold or expensive failure may result.
• A buffer tank or low loss header should be used to create hydraulic separation and ensure a minimum
primary water volume of either 28 litres (single fan unit) or 38-55 litres (twin fan unit dependent on
model). If using a low loss header then a volumising tank is probably required.
• The pipe diameter used must be no smaller than 28mm copper (larger if plastic). Contact Secon for advice
if the pipe length exceeds 10 metres or you are using plastic pipe.
• If glycol (anti-freeze) is used then this should be food safe and pre mixed before introduction and of the
correct strength for the system. This should be checked every year.
• The water quality should be tested against Hitachis requirements?
Part of the startup process involves checking the water flow rate. In order for the unit to operate at all then an
absolute minimum flow rates must be met, but for correct operation as designed then a water flow rate below
must be observed below.
Model
RASM-2VRE
RASM-3VRE
RASM-4VNE
RASM-5VNE
RASM-6VNE
RASM-4NE
RASM-5NE
RASM-6NE
A commissioning sheet is available for download on the Secon renewable web site
and this should be filled in and returned to Hitachi within 28 days of commissioning. Also the unit should be
subject to an annual service by the installing contractor or another authorized service company to meet the
warranty conditions.
T: 0191 516 6554

Warranty

Min Flow Rate
8.4 l/min
10.0 l/min
16.7 l/min
18.4 l/min
20.0 l/min
16.7 l/min
18.4 l/min
20.0 l/min
W: www.seconrenewable.com
Max Flow Rate Minimum Water Content
31.8 l/min 28lt
35.0 l/min 28lt
46.8 l/min 38lt
50.1 l/min 46lt
50.1 l/min 55lt
46.8 l/min 38lt
50.1 l/min 46lt
50.1 l/min 55lt
E: info@seconrenewables.com
www.seconrenewables.com