2 ©ESP Ltd. Sept 2008
Contents
Warning!!!!
READ THIS BEFORE INSTALLING THE
UNIT.
All un-vented water heating systems above 15 litre (this in-
cludes the ESP Hot Water ASHP‟s)
MUST
be installed to
meet the requirements of the Building Regulations. It is a
legal requirement that the local Building Control Officer be
notified of any proposed installation of un-vented water
heating systems over 15 litre capacity.
Furthermore, it must be fitted by an installer who has suc-
cessfully completed a recognised course in the installation
of un-vented heating systems such as CITB. Failure to prop-
erly fit the unit may affect its efficiency and invalidate any
guarantee.
Safety requirements in the UK call for an expansion space
(internal or external), safety devices to prevent the stored
water exceeding 100°C, and pipework to convey discharged
hot water safely away from the safety devices.
Preface………………………………………………………………..3
General Requirements………………………………………………..4
Specs…………………………………………………………………6
Function Presentation………………………………………………..8
Installation…………………………………………………………...9
Commissioning……………………………………………………...18
Maintenance…………………………………………………………19
User Instructions…………………………………………………….22
Safety Precautions…………………………………………………...24
Guarantee……………………………………………………………26
Spare Parts…………………………………………………………...27
Appendix 1…………………………………………………………..27
Appendix 2…………………………………………………………..36