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Water Connections continued-
INSTRUCTIONS FOR SOLAR CONNECTIONS
The solar water heater connection labeled “TO SOLAR COLLECTOR” should be piped to the solar return piping.
The use of a union and a shut-off valve is recommended. Pipe and fittings between the solar system and the water
heater should be ¾” diameter or larger.
ONE-TANK SYSTEM INSTALLATION
CONNECT SOLAR PIPING TO WATER HEATER
1. For a closed loop solar heating system, refer to Figure 3. The solar water heater connection labeled “FROM
SOLAR COLLECTOR” should be piped to the solar collector supply piping. Mount the circulator making sure
the flow arrow points toward the water heater. The use of shut-off valves and unions are recommended for
future service convenience. The use of an air separator and vent is recommended to eliminate air in the system.
Pipe and fittings between the solar collector and solar water heater must be ¾” diameter or larger.
Figure 3 – Solar Collector Piping in Closed-loop Installation
CAUTION
Maximum solar collector water supply temperature to the solar heat exchanger
must not exceed 250°F (121°C).