Advance Power 16004-12 Встановлення маналя - Сторінка 8

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Although PVC pipe is generally white, black is also

available but may be difficult to find locally. If for

aesthetics black pipe is desired, it can always be

painted black. Before painting, the PVC pipe must be

wiped with cleaner to remove the glossy surface

coating. This will ensure that the paint will not flake

off prematurely.

MANUAL SYSTEMS

The manual control is with a non-positively sealed

three-way valve. Water flows continuously through

the solar collectors when the filter pump is on, but can

be diverted manually by the homeowner if the pool

becomes too warm or during extended cloudy

weather. During a thread of freezing conditions it can

also be diverted, by first shutting off the pool pump,

allowing the collectors to drain, diverting the three-

way manual valve to the "bypass collector" position

and shutting the isolation valves on the collector freed

and return lines. A lower end cap on the collectors or

any of the connecting hoses can be removed to make

sure there is no standing water in the panels. The filter

pump can then be re-started to allow for normal pool

filtration.

During normal operation of the system when the

three-way valve is in the 'bypass collector' position

all the water in the panels should drain back through

the three-way valve (non-positively sealed) when the

filter pump shuts off. An alternate way to protect

against sudden freezes can be accomplished by

running a bypass line (1/8"-14") between the collector

feed and return line above the isolation valves. It is

possible that a small amount of water may be present

in the collectors when a non-positively sealed three-

way valve is used and the filter pump is on. If a

positively sealed three-way valve is used, a bypass

line as mentioned above is mandatory to allow for

panel drainage.

Automatic Control Systems

The performance of a solar pool heating system can

be improved with the use of an electronic control and

motorized three-way valve. The control activates the

motorized valve and either sends water through

collectors for heating or automatically bypasses the

collectors when the pool is warm enough of

insufficient sunlight is available. Refer to the

manufacturer's instructions included with the

automatic equipment you use.

Other Equipment

Some pools employ an automatic pool cleaner. This

should be plumbed before the control valve to assure

positive flow to the cleaner at all times. If the pool

uses an automatic chlorinator, this should be plumbed

after the outlet tee on the return to the pool.

Supplemental Gas, Oil-Fired, or Electric Heaters

It is desirable to pipe the stand-by heater in a bypass

loop. Refer to the System Diagram Figure 12. Fuel-

fired heaters often create a large pressure drop. By

placing the heater in a by-pass loop, pump size, and

electrical energy requirements may be reduced.

SECTION 3: SYSTEM START-UP, CHECK-

OUT, AND MAINTENANCE

System Start-up and Check-out for Automatic

Systems

To check out the system for proper operation turn on

the filter system. Set the temperature control to its

highest level. Switch the control to the "flow through

collector" mode. The "flow through collector" light

should come on. The three-way valve will then be

sending water through the collectors, and air will be

purged out of the collectors into the pool return line

for several minutes, and should then clear. The panels

should feel uniformly cool to the touch. Switch the

control to the "bypass collector" mode. The

corresponding light will go on and the three-way

valve will be sending water directly back to the pool,

bypassing the solar panels. After about 5-10 minutes,

feel the solar panels again. They should have begun to

warm up. Now switch back to the automatic mode. If

the sun is still shining on the solar collectors, the

"flow through collector" light should come on again.

Slide the temperature control down ward, and when

you reach the actual temperature of the pool water,

the light will turn off. The flow bypass collector light

will go on again. Slide the temperature control to

maximum. The flow through collector light will go

back on. For more detailed information on the system

startup,

trouble

shooting

installation, follow the manufacturers' instructions

included with the automatic control system.

Flow Rate Test and Adjustment

With the system running and the sun shining, all

collectors of the system should be uniformly cool to

the touch, and the system will be operating at

optimum performance. If the system has been

installed according to these instructions, and the

and

valve/control