Copyright © 2012 Thermann
Page 2 of 4
Solar Ready Tank Installation Guide
TH-SRT-Installation-Guide-V1
1. Introduction
1.1 Thermann Solar Ready Tank
Thermann solar ready tanks (SRT) are an electric hot
water storage tank that contains seven (7) ports, four (4)
more than a standard electric hot water system.
This unique design advantage allows installation of
an electric storage tank that can be easily, and cost
effectively upgraded to solar at a later date. Perfect for
emergency break downs and maintenance.
When solar is added to the SRT under certain conditions,
it may still be eligible for government assistance/
incentive schemes.
Figure 1. Solar Ready Tank
1.1.1 SRT Ports Explained
1. Inlet (Mains): Inlet line from mains water supply
2. Solar Flow: Flow line to the collector
3. Solar Return: Return line from the collector
4. Outlet: Outlet line to tempering valve and load
5. Sensor 1 Port: Bottom temperature sensor
6. Sensor 2 Port: Top temperature sensor
7. PTRV: Pressure temperature relief valve location
2. Installation
2.1 SRT Port Connections
IMPORTANT
Thermann solar ready tanks (SRT) must be installed
in accordance to AS/NZS 3500.4 as well as any other
relevant local/government standards.
All compression fittings must be of brass with copper
olives.
Teflon tape must be used on all fittings.
2.1.1 SRT Port Sizes
Table 1. SRT Port Sizes
Port Location
Size
Inlet (Mains)
20mm (3/4”) BSP
Solar Flow
20mm (3/4”) BSP
Solar Return
20mm (3/4”) BSP
Outlet
20mm (3/4”) BSP
Sensor Ports
Adjustable Cable Gland
PTRV
20mm (3/4”) BSP
2.1.2 Pipe Work
For general mains pressure systems, the recommended
pipe size is 3/4”. All pipe work and insulation must be
installed in accordance with AS/NZS 3500.4
IMPORTANT
When solar is added to the storage tank, pipe work
and insulation can be exposed to much higher maxi-
mum temperatures. It is necessary that all valves and
fittings used are solar rated.
1
2
3
4
7
5
6
Table Of Contents
1. INTRODUCTION
2
1.1 Thermann Solar Ready Tank ..................................... 2
1.1.1 SRT Ports Explained ........................................................2
2. INSTALLATION
2
2.1 SRT Port Connections ................................................ 2
2.1.1 SRT Port Sizes .................................................................2
2.1.2 Pipe Work .......................................................................2
2.2 Pipe Work Connections ............................................. 3
2.2.1 Inlet (Mains) ...................................................................3
2.2.2 Solar Flow ......................................................................3
2.2.3 Solar Return ...................................................................3
2.2.4 Outlet .............................................................................3
2.2.5 Sensor Ports ...................................................................3
2.2.6 PTRV Port .......................................................................3
