Installation manual

Rinnai Australia - 44 - Solar Split Systems Operating / Installation Manual
CHECKING SOLAR PUMP OPERATION
1. Ensure hot and cold sensors are connected as shown Figure
31.
2. Activate power supply.
3. Pumps will operate when solar energy is available to be collected. Pump operation can be checked by
placing the end of a screw driver to the pump body and the other end of the screw driver near your
ear.
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ADJUSTING FLOW CONTROL VALVE
The purpose of the flow control valve is to allow the water flow
r
ate through the collector collectors and storage cylinder to be
controlled to optimise the performance of the system. The
optimum flow rate for the system will depend on the type of
system (electric or gas boost), the number of collector
collectors, and the location of the installation (see the solar
zone shown in Figure 32).
Figure 32 - Australian Solar Zones
The flow control valve needs to be adjusted while the pump is
operating. The flow rate valve is read at the bottom of the
baffle float as shown in Figure 33 Using a flat bladed screw
driver turn the screw on the valve until the value from Table 9
is achieved.
Figure 33 - Adjusting Flow Control Valve
The installer will need to set the flow rate to the value shown in Table 9 below.
The dip switches within the pump control box should not need to be adjusted.
If the solar pump does not activate the system can still be commissioned as detailed in
these instructions, but solar preheating will not be available until the pump and
controller operate.
Table 9 - Optimum Flow Rate (Litres/min).
No. of Collectors
Zones
1, 2 & 3
Zone 4
Gas Boosted
10.500.50
21.251.25
32.102.10
NOTE
INSTALLATION & MAINTENANCE - GAS BOOSTED SYSTEMS