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16

TROUBLESHOOTING: 

 
Follow the chart below for problem identification and 
resolution: 

SYMPTOM CHECK 

REPAIR 

No hot water 

Check to see 
power is on to 
backup element 

Re-engage 
power. If power is 
on replace 
element. 

 

Perform solar 
system 
operational 
checks 

If pump does not 
function, replace 
it. If controller is 
not working, 
Check sensors 
and replace if 
necessary. If 
controller does 
not work, replace 
it. 

 

If election is made 
to operate on 
“Solar Only” 

Check to insure 
sufficient sunlight 
has been 
available. 

 

Check HTF level 
in drainback tank 

If low, add 
distilled water. 

Pump “On” 

light is lit, 

pump does 

not run. 

Unplug pump 
power line from 
controller and 
plug into 115V 
extension cord  

If pump runs, 
replace controller, 
if not replace 
pump cartridge or 
capacitor. 

Pump and 

controller 

work but no 

hot water. 

Check for 
sufficient sun 
light. 

If no sun light is 
available, reapply 
power to electric 
backup element. 

 

Check to insure 
proper flow in 
solar loop. 

If HTF water is 
not flowing call  
solar contractor 
who installed the 
system for service

 

If solar loop is 
working properly 
but sunlight is not 
available then 
check electric 
backup element. 

Replace electric 
element. 

Water is too 

HOT. 

Check high limit 
setting on solar 
controller.  

Reduce setting if 
too high. 

 

If solar supplied 
water is at 
preferred 
temperature 

Install optional 
tempering valve 
between cold and 
hot lines on water 
heater. 

 

 

 

SYMPTOM CHECK 

REPAIR 

 

Check for 
thermostat failure 
on electric 
element. 

If bad replace it. 

NO lights on, 

on controller 

Check to insure 
unit is plugged in. 

If plugged in 
replace unit or 
call technician 

Unsure of 

system 

performance. 

 Call 

system 

installer. 

 
Additional Troubleshooting procedures for solar 
systems can be found at the Florida Solar Energy 
Center web site:  
 

http://www.fsec.ucf.edu/solar/apps/sdhw/trouble.htm

 

  

SYSTEM PARTS LIST: 

 
System Part Number: 
 
Each SUN HoM system is identified by a system 
part number, i.e.: DBSA 80-40. The letters refer to: 
 
DrainBack Type                Heat Exchanger type:  

“DB” only means Heat Exchange Tank 

“DBSA” stands for Side Arm Heat Exchanger 

 

The first two or three number designators, (i.e.: 80 
or 120) stand for the tank size in gallons. The 
second two number designators indicate collector 
square footage, (i.e.: 40). 
 
The table below indicates collector type based on 
the square footage number. Collectors are 
manufactured and supplied by SunEarth, Inc. 
 

Designator 

BRAND  Sq. Ft. 

Part # 

NO. 

40 Empire 

40 

EP-40 

42 Empire 

21 

EP-21 

48 Empire 

24 

EP-24 

63 Empire 

21 

EP-21 

64 Empire 

32 

EP-32 

72 Empire 

24 

EP-24 

80 Empire 

40 

EP-40 

 

 
 
 
 
 
 
 
 
 

 16

Содержание DB-8040

Страница 1: ...12063 SUN HoM DBSA 12064 SUN HoM DBSA 12072 SUN HoM DBSA 12080 This Manual Contains Installation Instructions Operating Instructions Maintenance Procedures Safety Precautions PLEASE READ THIS ENTIRE MANUAL BEFORE BEGINNING INSTALLATION OR ATTEMPTING TO OPERATE THIS SYSTEM All Safety Precautions are posted as WARNINGS or CAUTIONS in text boxes Figure 1 Tank System Assembly DB type Figure 2 Tank Sys...

Страница 2: ...ve the heat collection fluid from the heat exchanger to the collector Table 1 shows the flow rate curves for these pumps If the distance from the pump to the top of the collectors is sufficient to keep the flow at or below 4 gpm then no flow control is required If not it may be necessary to install flow metering devices in the collector loop Only a licensed certified contractor should do this This...

Страница 3: ...ons to the solar collector Serious injury and damage can occur DO NOT introduce heat transfer fluids to potable water lines Refer to Figures 1 2 for the following Install the T P relief valve in the 3 4 NPT fitting provided and marked for the purpose on the water heater The outlet of the relief valve should be directed to a suitable open drain so that the discharge water cannot contact live electr...

Страница 4: ... household use If water of different temperature is required set indicator on thermostat to the desired temperature NOTE Households with small children elderly people or invalids may require lower temperature settings to prevent accidental contact with HOT water Adjustments to the temperature setting of the electrical element can be made through the access panel located on the front panel of the w...

Страница 5: ... Drainback tank has been filled Do Not plug in the controller prior to this WATER HEATER TANK SERVICE It is recommended that a few gallons of water be drained from the water heater every two months This will flush lime and sediment deposits from the bottom of the water heater and lengthen the water heater s service To flush the tank 1 first attach a hose to the 3 4 hose connection on the Drain Val...

Страница 6: ...N HōM solar System can be mounted in either a vertical or horizontal orientation on the roof Figure 3 Because the freeze protection method is Drainback it is strongly recommended the collector always be mounted in vertical orientation It is still important to slope the collectors just slightly to allow for complete drainage during off mode The required slope is at least 1 4 vertical rise per foot ...

Страница 7: ...ial series collectors are available upon request The collector must be raised from the roof surface to allow for rainwater and debris to pass under the collectors and for proper ventilation of the roofing material There should be at least 1 1 2 of clearance between the roof surface and the bottom of the solar collectors In selecting mounting hardware and fasteners it is extremely important to avoi...

Страница 8: ...8 8 Fig 6 Fig 8 Fig 7 Fig 9 ...

Страница 9: ...on material is Rubatex Insul Tube 180 or equal Fig 11 To the extent possible slide the insulation material over the pipe without cutting or taping All butt joints must be sealed with contact adhesive The use of rigid polyethylene pipe insulation is prohibited The temperatures generated by your collector in the summer months or under stagna tion conditions can melt this type of material Any above g...

Страница 10: ...or piping is 5 8 OD copper Piping in new solar installations can be covered with dirt grease solder flux or other impurities that over time affect the quality of the distilled water heat transfer fluid HTF A thorough cleaning is required before charging the system Carefully review the cleaning procedures in Charging The System All vertical piping between the storage tank and the collector shall be...

Страница 11: ...o connect the collector sensor to the controller should be a minimum18 AWG The wiring should be bare or tinned copper two conductor PVC insulated with a PVC UV rated gray jacket suitable for exterior use Use Eastman Wire Cable No 5704 Belden Wire and Cable No 8461 or equal The system comes pre wired for the tank sensor Do not attempt to install a tank sensor Interconnect Plumbing Piping to and fro...

Страница 12: ...ollectors can reach temperatures over 3000 F under the right conditions Always be cautious when working around flat plates that are exposed to sun light Water passing through tube incorporated in the plate picks up heat to transfer to the water heater This completes the system installation procedure OPERATING INSTRUCTIONS Refer to Figures 1 and 2 or the system schematics at the end of this manual ...

Страница 13: ...and the collector comparing them to see if the collector is hotter then the tank When the collector reaches a 120 F higher temperature than the water heater tank the controller energizes the pump As stated above the pump will continue to run until the differential temperature the difference between the collector and the tank drops to 40 F When this happens the pump is turned off and the heat trans...

Страница 14: ...r is the recommended fluid Use of potable tap water is prohibited As described earlier propylene glycol can be added at a ratio of 8 1 8 parts water to one part propylene glycol This is not required SERVICE START UP PROCEDURE At this point the water heater tank should already be filled and on line for hot water This includes the electric element connections 1 Fill the Drainback Tank to the level i...

Страница 15: ...hut Down Procedure and drain the HTF Then repeat the Start Up Procedure See also Charging Procedure MAINTENANCE WATER HEATER TANK Once each year it is recommended that the water heater tank be purged To do this follow the steps below 1 Disconnect power to the electric element DO THIS BY THROWING THE CIRCUIT BREAKER 2 Attach a hose to the Drain Valve on the bottom of the water heater tank 3 See Fig...

Страница 16: ...r is too HOT Check high limit setting on solar controller Reduce setting if too high If solar supplied water is at preferred temperature Install optional tempering valve between cold and hot lines on water heater SYMPTOM CHECK REPAIR Check for thermostat failure on electric element If bad replace it NO lights on on controller Check to insure unit is plugged in If plugged in replace unit or call te...

Страница 17: ...t became defective as result of normal use This Limited Warranty does not extend any Warranty written or implied by others with respect to time or limits of coverage This Limited Warranty does not cover valves How To File a Claim A Warranty Card is supplied with the system when it is sold THIS CARD MUST BE FILLED OUT AND RETURNED AT THE TIME OF SALE The Warranty Card has two sections Fill out both...

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