Astivita SPS-270, Инструкция по установке и руководство пользователя, Страница: 34 / 41

Astivita Limited ABN 46 139 461 733
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Astivita Limited
172 Ingram Road,
Acacia Ridge QLD 4110
Ph: 1300 302 084
Fax: (07) 3726 2099
Email:
service@astivita.com.au
www.astivita.com
DRAINING THE WATER HEATER

Ensure power is switched off at both the water heater and controller

Open a hot water tap and allow the hot water to run for a full 5 minutes immediately prior to
draining the solar water heater tank. This will assist in draining high temperature water from
the collectors back to the storage tank. After 5 minutes, the hot water tap may be closed.
NOTE: Extreme care must be exercised as water discharged from the solar
collectors may be at a very high temperature

Turn off the water heater (see above)

Operate the relief valve release lever carefully to release the pressure in the water heater
–
do not allow the lever to snap back or damage may result to the valve seat

Undo the union at the cold water inlet and attach a hose to allow the water to drain from the
tank

Operate the relief valve again to allow air into the water heater which will allow the water in
the water heater to drain away