Table of Contents
Advertisement
COMMISSIONING
Systems Installed with an Over Temperature Protection (OTP) System
An Over Temperature Protection system installed on a closed circuit system incorporates an OTP valve
installed between the end of the solar hot pipe and the closed circuit inlet of the solar storage tank. The OTP
valve is a temperature actuated valve that is designed to close when exposed to high temperature closed
circuit fluid.
Ensure the OTP valve is covered with a cloth soaked in cold water and the solar collectors are covered with
an opaque material during the commissioning procedure of the closed circuit. This is to keep the valve as cool
as possible and ensure it remains in the open position during the commissioning procedure.
If the OTP valve was to close and the closed circuit is only partially filled the solar performance will be much
reduced resulting in a no hot water complaint. In addition, excessive noise can be generated from the system
leading to possible disturbance and irritation to the householders.
Coolblend Heat Transfer Fluid Concentrate Handling and Safety
Caution: Although the Coolblend heat transfer fluid concentrate is non-toxic and non-hazardous, care must
be taken not to accidentally consume or spill any of the Coolblend concentrate when handling. Only use
approved closed circuit concentrate. If required, a Safety Data Sheet (SDS) is available from Rheem.
While the closed circuit fluid is non-toxic to humans, it does have an adverse effect on water stored in rainwater
tanks. It can cause an unpleasant odour to develop and result in the rainwater tank having to be drained and
"Rainwater Collection System"
cleaned. Refer to
Warning: Wear protective gloves and clothing, and eye and face protection when handling the Coolblend
concentrate. The concentrate can cause skin and serious eye irritation.
Warning: Although non-toxic, the following first aid advice and procedures should be followed if the
Coolblend closed circuit concentrate comes into human contact or is spilt:
•
Swallowed
If swallowed do not induce vomiting. If vomiting occurs, lean person forward or place on left side (head-
down position, if possible) to maintain open airway and prevent aspiration. Observe the patient carefully.
Never give liquid to a person showing signs of being sleepy or with reduced awareness, i.e. becoming
unconscious.
Give water to rinse out mouth, then provide liquid slowly and as much as casualty can comfortably drink.
Seek medical advice.
•
Eyes
Wash out immediately with fresh running water. Ensure complete irrigation of the eye by keeping eyelids
apart and away from eye and moving the eyelids by occasionally lifting the upper and lower lids. Continue
rinsing with flowing lukewarm water.
Remove contact lenses, if present and easy to do. Removal of contact lenses after an eye injury should
only be undertaken by skilled personnel.
Seek medical attention without delay if eye irritation or pain persists or recurs.
•
Skin
Immediately remove all contaminated clothing, including footwear. Flush skin and hair with running water
(and soap if available). Wash contaminated clothing before reuse.
Seek medical attention in event of irritation.
•
Inhaled
If fumes are inhaled remove the person from contaminated area to seek fresh air.
Lay person down. Keep warm and rested.
Prostheses such as false teeth, which may block airway, should be removed, where possible, prior to
initiating first aid procedures.
•
Spilt
Stop leak source, absorb with a dry agent and eliminate any ignition sources nearby.
on page 28.
66
Advertisement
Table of Contents
