2
Contents
Contents
1
Introduction &
General Requirements
3
1.1
Installation Requirements
3
1.2
Location
3
1.3
Storage and Handling
3
1.4
About Your New Cylinder
3
1.5
Open Vented Hot Water Systems
3
1.6
Pipework Connections
3
1.7
Scaling
3
1.8
Insulation
3
1.9
Health and Safety
3
2
Technical Specifications
4
2.1
Technical data
4
2.2
Dimensions
5
2.3
Connections and Controls
6
3
Primary Circuit Installation
7
3.1
Grant DuoWave Plus Cylinders
7
3.2
Boiler Primary Connections
7
3.3
Auxiliary Primary Connections
7
3.4
Hard Water Areas
7
4
Secondary Circuit Installation
8
4.1
Discharge Pipe Arrangement
8
4.2
Discharge Pipe Sizing
8
4.3
Worked Example
8
4.4
DuoWave Plus 300
9
4.5
Cold Water Storage Cistern (CWSC)
9
4.6
Cold Feed Pipe
9
4.7
Open Vent Pipe
9
4.8
Primary Connections
9
5
Electrical Installation
10
5.1
Immersion Heater
10
5.2
Immersion Heater Wiring Instructions
10
5.3
Y-plan System
11
5.4
S-plan System
12
5.5
Solar Thermal System
13
6
Commissioning, Draining
Down & Safety
14
6.1
Filling the Cylinder
14
6.2
Draining Down
14
6.3
Safety Cut-Out
14
6.4
Hot Water Discharge from Tundish
14
6.5
Customer Handover
14
7
Maintenance
15
7.1
Servicing & Maintenance
15
8
Fault Finding
16
8.1
Intermittent Water Discharge
16
8.2
Constant Water Discharge
17
8.3
No Flow from Hot water Taps
18
8.4
Cold Water Flow from Hot Water Taps
19
8.5
Excessive Hot Water from Taps
20
9
User Instructions
21
9.1
User Instructions
21
10
Warranty
22
10.1 The Grant Cylinder Warranty
22
Notes
23
