Water Piping

damage to the area adjoining the water heater or to lower floors of the structure. When such locations can’t be avoided, a suitable drain pan should be installed under the water heater. Such a pan should be no greater than 1 1/2 inches deep, have a minimum length and width of at least two inches greater than the heater dimensions and must be piped to an adequate drain.

CAUTION

This solar water heater, as all water heaters, will eventually leak. Do not install without adequate drainage provisions where water flow will cause damage. Note: normal condensation from a solar water heater may appear to be a leaking tank.

This solar water heater is design certified to be used with a potable water system. When connecting water piping with solder joints use only lead free solder.

WARNING

The indirect coil in this unit is a single wall and may only be used in a closed loop - fill only with a mixture of propylene glycol containing corrosion inhibitors (such as Dowfrost™ HD) (50% by volume maximum) and distilled or de-mineralized water. Never fill with a toxic liquid. Use of any heat transfer fluid other than that specified or failure to operate the heat exchanger in a closed loop will void the warranty, and may result in poor performance, equipment damage, or risk to health and safety.

WARNING

This solar water heater shall not be connected to any heating systems or component(s) previously used with a non-potable water heating appliance.

If this solar water heater is also used for space heating applications, all piping and components connected to the solar water heater shall be suitable for use with potable water.

This appliance has been design certified as a solar water heater complying with Standards for Safety - UL174 for the U.S. and can/csa-c22.2 No 110 F379.1 and F379.2 FOR Canada. The particular application of this appliance described (above paragraph) may be subject to review and approval by local code officials.

WARNING

Toxic chemicals such as used for treatment of boilers or non- potable water heating appliances shall never be introduced into a potable water space heating system.

WARNING

When the system requires water at temperatures higher than required for other uses, a means such as a mixing valve shall be installed to temper the water for those uses in order to reduce scald hazard potential. Mixing valves are available at plumbing supply or hardware stores. Follow manufacturer’s instructions for installation of these valves.

FIGURE 3

The solar water heater will work better if you keep the hot water runs short. You will also get hot water faster and with less heat loss.

The illustration shows the correct valves and fittings that you will need to install the solar water heater. Threaded (3/4”) water connections are supplied through the tank top.

FIGURE 4

1.Buy the fittings that you need to connect the pipes. Remember that you have to connect both the hot and cold water pipes.

2.Apply a light covering of pipe joint compound to each outside thread before making connection.

3.Connect the cold water supply pipe to the cold water inlet of your solar water heater as follows:

a.Look at the top cover of the solar water heater. The hot and cold connections are marked there.

b.A non-metallic dip tube is supplied to carry cold water from the tank top to the bottom. Be sure that it is in the cold water inlet.

c.If using copper tubing, solder tubing to an adapter BEFORE you attach the adapter to the cold water inlet. DO NOT solder the cold water supply pipe directly to the cold water inlet connection. It might harm the dip tube.

d.The cold water supply line must have a shut-off valve and union.

4.Use a union to connect the hot water supply pipe to the solar water heater’s hot water outlet.

CAUTION

Operating an empty or partially filled solar water heater will result in damage to the tank.

If a solar water heater is installed in a closed water system; such as one having a back flow preventer, check valve or water meter with check valve in the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or local plumbing contractor on how to control this situation.