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Page 26 

Some of the solar panels are warm to the touch while others are cool 

Diagnosis: There is not equal flow through all of the panels. Warm panels indicate low water flow. 

Pump Answers: 

1. Check that the filter is clean. Backwash to reduce pressure.

2. The pump may not be providing enough water to the solar system. Check water flow using a

flow meter. Increase pump power to maintain recommended flow.

3. If there is a suction type cleaner in the pool, disconnect it. If this eliminates the problem, use it

only when the solar system is off.

Install Answers: 

1. If the system is a single row array and there is adequate flow, use a Ball Valve on the return

line to throttle the flow back to increase backpressure on the system. This will even out the

flow through the panels. If the array contains more panels than the maximum recommended on

Page 11 of this manual, change the array to a double row or single row split feed as shown in

on Page 12.

2. If the system is a double row or a single row split feed array and there is adequate flow, install

a Ball Valve on the return side of the set of panels that are the coolest to throttle back the flow

through these panels and force more water through the warmer panels. If any section of the

array contains more panels than the maximum recommended on Page 11 of this manual, make

changes as needed to correct this.

Water coming from the system is not as warm as it should be 

Diagnosis #1: The water is flowing too fast through the panels 

Install Answer: 

 

Test water flow rate. Water flow through a single panel should be less than 2500 liters per 

hour. Adjust the Two-Way Valve to by-pass some of the water. 

Diagnosis #2: Seasonal normal operation 

Answer

 

In the cooler months of the year, or on cool or partly cloudy days, the temperature rise through 

the panels may only be 2° or 3° C. Use the back of your hand to feel the water temperature 

difference at the pool return inlet.

 

Page 26

Содержание SHC-ITS-HC30

Страница 1: ...an n e ea as sy y t to o f fo ol ll lo ow w p pr ro oc ce ed du ur re e a a l li it tt tl le e t ti im me e s sp pe en nt t u un nd de er rs st ta an nd di in ng g t th he e s sy ys st te em m a an nd d i it ts s p pa ar rt ts s w wi il ll l a as ss su ur re e a a s su uc cc ce es ss sf fu ul l t tr ro ou ub bl le e f fr re ee e i in ns st ta al ll la at ti io on n I If f a at t a an ny y t ti im ...

Страница 2: ...tallations 11 Basic plumbing array layouts 12 Plumbing 13 Balanced flow 13 Pump power 14 Booster Pumps 14 Automatic drainage 15 6 Installation 16 Connecting panels together 16 Bypassing a small obstruction 18 Connecting panels across a large obstruction 18 7 Connecting to the existing equipment 19 Feed and return lines 19 Connecting with the existing filtration system 20 Plumbing guidelines 21 Aut...

Страница 3: ...elp ensure that your installation meets our recommended standards It also includes techniques and tips gathered from experienced Heliocol contractors that will save you time and effort Overview Heliocol solar heating systems can be either mounted on a roof or on the ground In either case the collectors may lie directly on the mounting surface or if a change of angle is necessary on a specially con...

Страница 4: ...n or around a roof or pool area Take care to avoid hazards such as overhead electrical wires or loose tiles Do not allow extension cords to trail into the pool or other stagnated water Disconnect the power supply to the pool when installing an automatic control system When working on a steep roof use a safety rope Be sure to secure ladders so they do not slip or fall Wear shoes with good tread to ...

Страница 5: ...m panels You connect the supplied pane ls together to form banks of various lengths depending on the individual requirements at your site A Heliocol solar heating system consists of one or more banks of collectors connected to the swimming pool filtration system Panel 4 modules welded to one another at the factory Bank a system made of several panels joint together with PPC connectors Page 3 ...

Страница 6: ... surface area including climate latitude roof orientation and slope winds pool covered at night and the presence of local obstructions such as overhanging branches between the panels and the sun An approximate rule of thumb is to allow for a collector area equal to half the surface area of the pool Proximity to pool The panels need to be as close to the pool as possible although longer pipe runs a...

Страница 7: ...t system for your site 2 Prepare a schematic drawing of the installation area Include the proposed location of the feed and return lines 3 Use the panel dimensions in the table below to sketch the system you will construct Tip Roof areas often give the impression of being bigger than they really are so be sure to actually measure the available area before making your drawing Note Where possible co...

Страница 8: ... Feed line to the farthest point from pump house and lowest point on system 2 PVC pipe connecting across a large obstruction 3 Flat roof 4 Return line as short as possible Note Full details of how to connect the supply and return pipes are given in Chapter 7 Page 6 ...

Страница 9: ...area for the rack take into account that collectors expand and contract due to temperature changes under normal working conditions Allow 5cm extra length per collector Allow room on the rack for the supply and return plumbing and plumbing between collectors and banks The mounting rack must be stable and able to support the weight of the collectors when filled with water which is up to 5kg m2 Figur...

Страница 10: ... will help you calculate which Heliocol and other fittings you will need to complete your installation This chapter deals with the following three categories Heliocol fittings and accessories Other fittings Tools Description Picture Dimensional Data PPC Set Plastic Panel Connector Top Bottom Clip O ring C P V C Adaptor End Cap Page 8 ...

Страница 11: ...top and bottom a rubber gasket and a latch one to connect the upper manifolds and one to connect the lower manifolds Figure 4 1 PPC Plastic Panel Connector set Ends of a bank When all the panels in a row are connected together you will have four open ends Two of these will be connected to the supply and return plumbing and the other two will usually be blocked with end caps For each bank you will ...

Страница 12: ...g the system up and under the tile such that it is trapped in position at the head of the tile It is advisable to coat the exposed strapping after the installation with a proprietary acrylic roof paint for additional UV protection Where necessary using anchor bolts and wide washers directly into the ridge tile This method requires the application of a suitable waterproofing system over the washer ...

Страница 13: ...lso be used for smaller installations when space is limited Guidelines for residential installations Panel Layout Flow rate Single Bank It is not recommended to install more than 6 panels for this layout 120 lit min Bank in Series When installing more than 6 panels it is advisable to use the split in series bank system This will allow you to control the flow rate more efficiently Remember that the...

Страница 14: ...Page 12 Basic plumbing arrays layouts SINGLE BANK WITH OBSTACLE Split around the obstacle or over the parapet or split level roofs Page 12 ...

Страница 15: ...y restrict water flow use as few of these as possible In some cases two 45 fittings can be used in place of a 90 fitting Tip When clamping pipes that run across the roof use clamps that allow 1cm for expansion of the pipe in hot weather Tip When clamping pipes on the side of a building use clamps with a diameter equal to the pipe diameter to prevent vibration and to assure a professional looking i...

Страница 16: ...pool solar system unless there is an unusually long pipe run a high roof or a large number of panels If you are not sure what your pump flow rate is consult your Heliocol Representative or Pump Manufacturer for the pump s flow characteristics Booster Pumps Under extreme requirements e g of long runs and or high lifts of 7m or greater there is no alternative but to install a booster pump in the sol...

Страница 17: ... on condition that they are installed to allow for automatic draining Compensating for lack of automatic drainage If due to unusual roof design or pool equipment location it is not possible to achieve complete automatic drainage manual drain down valves must be installed in appropriate places in the plumbing or at the end of the bottom feed header Instead of installing an End Cap at the end of the...

Страница 18: ...C connector top bottom gasket and latch at both ends where the headers meet 2 Clean the groove of both headers and dry them 3 Insert the gasket 420211 into the groove of one of the headers 4 Connect the two headers by inserting the rubber gasket 420211 into the opposite header groove and fitting the ends of both headers into the plastic panel clamp Important Make sure that the gasket sits snugly i...

Страница 19: ...the tab in the top half of the clamp with the hole in the bottom half 120210B swing the top half 120210T round over the headers then lock the two halves of the clamp together using the latch 120211 do this by sliding the large end of latch over small end of the PPC assembly 7 8 Use channel lock pliers to tighten the latch grip by squeezing it with moderate force until it seats flush so it cannot s...

Страница 20: ...s it might cause a riser to become detached from the header The Plastic Magen Warranty does not cover incorrect installation of this type Connecting across a large obstruction For obstructions more than 15cm wide or less than 30cm from one of the headers you need to circumvent the obstacle using extension pipes between the manifolds Figure 6 2 Connecting across an obstruction Therefore when connec...

Страница 21: ...ipes should come down from the roof However if you will be trenching from the existing equipment to the Heliocol installation location this is not necessary Feed and return lines Feed and return lines are connected using a PPC connector and a CPVC adaptor The remaining two open corners of the bank are sealed using PPC connectors and end caps Fig 7 1 Connecting plumbing line to the collector To con...

Страница 22: ...Page 20 Connecting with the existing filtration system Page 20 ...

Страница 23: ...either diverts the water to the solar system or directly back to the pool It Features a 5mm hole through the ball of the valve to enable water in the solar system to drain back to the pool when the pump shuts off 1 Using the existing circulation pump the water flows through the filter and then directed to the collectors 2 Check valve for preventing backwash of the filter when the collectors drain ...

Страница 24: ...the heat of available solar radiation Important Make sure that the radiation sensor which is located on the roof is exposed to the sun in the same way the collectors do In a windy region a transparent plastic cover can be installed over the sensor Private pool basic plumbing When the existing filtration pump is sufficient to deliver the desired discharge to the collectors and there is no need for ...

Страница 25: ...he 2 way valve is installed in order to prevent undesired low water flow through the collectors caused by the main filtration pump Public pool basic plumbing 2 When there is a need for total separation between the solar piping and the filtration piping it is advisable to pump the water to the collectors by an independent pump that takes the water directly from the pool and returns the heated water...

Страница 26: ...it 2 3 minutes and check in the pool inlets that slightly warmer water is entering the pool through the water inlet Important During the cooler months of the year it is essential that the pool surface be covered at night with a pool blanket to minimize heat loss Low night time temperatur es may lower the water temperature more than the solar system can recover during the day Turning the system off...

Страница 27: ...f 4 If the pump has a clear lid and you can see air bubbles in the trap use a garden hose to run water over the lid and each joint individually to see if the air bubbles will clear up If the lid is opaque listen to pump noise to check that it is operating smoothly Repair any air leaks Diagnosis 2 If the vacuum breaker is installed on the roof there may not be enough water pressure in the system to...

Страница 28: ... change the array to a double row or single row split feed as shown in on Page 12 2 If the system is a double row or a single row split feed array and there is adequate flow install a Ball Valve on the return side of the set of panels that are the coolest to throttle back the flow through these panels and force more water through the warmer panels If any section of the array contains more panels t...

Страница 29: ...of the replacement is only to maintain the uniform appearance of the panel Figure B1 Heliocol riser repair plug left and sleeve right Cat No 1202910 for panel with header ribs Cat No 1203910 for panel without header ribs Figure B2 Heliocol riser repair tools Specific Heliocol repair handle Cat No 1202880 7 mm Chisel Important Do not use a chisel more than 7mm wide as you might damage the adjacent ...

Страница 30: ...until only the head is showing 5 Push a plastic repair plug all the way down into the repair sleeve You may use the rear part of the handle to push it firmly into the sleeve 6 The hole is plugged and will not leak Repeat steps 4 and 5 for the hole in the header at the other end of the panel 7 Cut the removed riser so it fits exactly between the broad heads of the plastic pins 8 Fit the riser onto ...

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