Econergy Installation Manual Rev G 240914
© Hot Water Heat Pumps Ltd 2018
12/03/2018
www.econergy.co.nz
10
Heat Pump Water Heater Installation Guide
Installation
Standard Specifications
No
Installation Component
Approved Specification
Plumbing Installation
1
Piping systems from Heat
Pump Unit to Hot Water
Cylinder
15mm nominal bore piping
(no more, no less).
Dux or Buteline Polybutylene
REHAU PE
Kembla PEX
Fusiotherm
Copper AS/NZS compliant
2
Pipe Line Fittings
Dux Secura, REHAU, Fusiotherm,
Kembla PEX or AS/NZS Standard
DR brass fittings
3
Flexible Hoses
NOT ALLOWED
4
Ball Valves
Use only full flow 15mm tee handle
valves. Bugatti, PWL, Econergy
5
Pipe Insulation
Min 13mm wall Armaflex or approved
equivalent. All piping to be fully
lagged along its length
6
Max Pipe Distance
9mm flow 9 m return
Electrical Installation
1
Low Voltage Cable
CAT5 UTP, 24AWG and rated to 1
amp max
2
Main Cable
2.5 TPS, 2 x 2.5mm
2
+ E, compliant
to AS/NZS5000.2
3
MCB
To suit electric back element rating.
Max permissible 20A