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HP Installation and User Instructions R00918
-
1 03/11
Page 4
Contents
1 Contents
0
OVERALL VIEW .......................................................................................... 3
1
CONTENTS ................................................................................................ 4
2
INTRODUCTION ......................................................................................... 6
3
SCOPE OF DELIVERY .................................................................................. 6
4
PRE-INSTALLATION ADVICE ........................................................................ 7
4.1
R
ISK ASSESSMENT
...................................................................................... 7
4.2
S
ITING CONSIDERATIONS
.............................................................................. 7
4.3
C
OLD WATER SUPPLY
................................................................................... 8
4.4
B
UILDING REGULATION
G3
D
ISCHARGE REQUIREMENTS
.......................................... 8
4.4.1
Discharge pipe D2 ......................................................................... 9
4.4.2
Worked example ..........................................................................10
4.4.3
Termination of discharge pipe ........................................................11
4.5
L
IMITATIONS
............................................................................................11
5
INSTALLATION..........................................................................................12
5.1
C
OLD
W
ATER
I
NLET WITH
I
NLET
C
ONTROL
G
ROUP
...............................................12
5.1.1
Correctly site the cylinder ..............................................................12
5.1.2
Install the inlet group....................................................................12
5.1.3
Expansion vessel ..........................................................................12
5.1.4
Balanced cold water supply............................................................12
5.1.5
Drain valve ..................................................................................12
5.2
H
OT
W
ATER
O
UTLET
..................................................................................13
5.2.1
Thermostatic mixing valve .............................................................13
5.2.2
Pipe insulation..............................................................................13
5.3
D
ISCHARGE PIPES FROM SAFETY DEVICES
..........................................................13
5.3.1
Discharge pipe D1............................................................................13
5.3.2
Discharge pipe D2 ........................................................................13
5.3.3
Tundish .......................................................................................14
5.4
I
MMERSION HEATER
....................................................................................14
5.5
C
OIL FLOW CONNECTIONS
............................................................................15
5.6
C
OIL RETURN CONNECTIONS
.........................................................................15
5.7
T
HERMOSTAT CONNECTION AND INSTALLATION OF THE HEAT PUMP
DHW
TEMPERATURE
SENSOR
..................................................................................................16
5.7.1
Connection of the sensor ...............................................................17
5.8
C
ONNECTION OF
S
ECONDARY
R
ETURN
..............................................................20
6
COMMISSIONING......................................................................................21
7
MAINTENANCE..........................................................................................22
8
SPARE PARTS ...........................................................................................23
9
TECHNICAL DATA......................................................................................24
9.1
C
YLINDER HEAT EXCHANGER PRESSURE DROP
.....................................................26
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