CONTROL SETTINGS, TROUBLESHOOTING AND WARRANTY
3
1.5. DIP Switch Settings
BIT SWITCH #
FUNCTION DESCRIPTION
SETTING WHEN LEFT (OFF)
SETTING WHEN RIGHT (ON)
1
Tank high limit shutoff - automatically turns off Relay 1 when the
storage sensor reads switch 4 setting of 160 or 180°F
No high limit function
High limit ON
2
Freeze recirculation - automatically turns on the
Relay 1 when the collector sensor reads 42°F or below
No freeze recirculation
Freeze recirc. ON
3
Useful collector temperature - automatically turns off Relay 1 when
the collector sensor reads 80°F or below, even with a satisfactory
differential (Freeze recirc. can override this function)
No useful collector
temperature monitor
Useful collector
temperature monitor ON
4
Tank high limit shutoff temperature - choose which temperature to
turn the tank off at 160 or 180°F
180°F
160°F
5
&
6
Differential setting - sets which temperature differential will turn on
and off Relay 1 (Heliodyne recommends both switches OFF for glycol
systems, and both switches ON for open loop or direct systems)
18°F ON
5°F OFF
9°F ON
4°F OFF
1.7. Troubleshooting
If a controller stops working, most often it is due to a sensor or wire failure. Detach
the sensor plug and measure the sensor resistance with a multi-meter and compare
with the chart below for appropriate reading values. Because they are inversely
related to temperature, a short reads as a very hot temperature, and an open reads
as a very cold temperature.
1.7.0. On/Off Test
This test verifies the controller will turn on and off. Switch the controller ‘ON,’ power
is applied to the Normally Open relay point, terminal 2. This may be verified with an
DC voltmeter across terminals 2 and 3. If a pump is connected, it should turn on.
With the switch in the ‘OFF’ position, power is applied to the normally closed relay
point, terminal 1. This may be verified with a voltmeter across terminals 1 and 3.
When the switch is ‘ON’, the pump LED indicator should be on. If not, consult the
manufacturer.
1.7.1. Basic Function Test
This test verifies the BIT settings are working correctly. The BIT switches (figure 2)
for a particular function must be on to test for that function.
Place BIT switches 1 on and 2 off (remaining switches can be either on or off.)
Switch controller to ‘AUTO.’ Allow the sensors to come to thermal equilibrium
(about one half hour.) Short the screws in positions (see figure 4) 1 and 2 and the
controller should turn on. Next, place the collector sensor in a cup of hot water;
this should turn the controller on. With the storage sensor screws shorted (positions
3 and 4), the controller should turn off. If the controller does not respond to these
tests, consult the manufacturer.
2.0. Warranty
HELIODYNE shall provide a one-year warranty for defects in compliance with the purchased goods
delivered after 3/1/2008 as follows: Objects are warranted at HELIODYNE’s discretion by repair of
the object of purchase or replacement of defective parts, exchange or reduction of price. The right of
the contractor to convert objects is ceded by common consent. Replaced parts become the property
of HELIODYNE. Wages and costs spent on installation and disassembly must be covered by the
client. This provision similarly applies to all warranty agreements. It is at HELIODYNE’s discretion
to replace defective goods with similar, faultless goods. In this case, any rights to cancel the
agreement cease. The client expressly waives the right for it and its legal successors to assert claims
for damages or loss of profit (including without limitation special, indirect, loss of use, contingent,
or consequential damages) due to defects or nonconformity in the purchased good. The warranty
set forth above constitutes the sole and exclusive remedy against HELIODYNE for the furnishing
of any nonconforming or defective goods. THE ABOVE WARRANTY IS EXPRESSLY IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY
WARRANTY AS TO MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE.
Damage resulting from improper or negligent treatment is excluded from the warranty. Claims on
warranty will only be admitted and considered if they are announced in writing immediately after the
defect was first noticed. Oral communication or communication by telephone are not sufficient.
For collectors (except broken glass and collector accessories e.g. sheet metal edgings) and storage
tanks (except attached components), HELIODYNE replaces materials that demonstrably fail to
meet one of the requirements of the ASHRAE standard 93-77 at no charge, works within five years
for storage tanks and ten years for collectors, of the date of the invoice issued by the company
HELIODYNE. HELIODYNE is not liable, however, for damage caused by mechanical stress and/
or changes caused by weather-related influences. Minor variations in color and/or damage to the
surface that have no effect on the function of the collector are also not covered in the warranty.
The warranty excludes damage caused by force majeure and malfunction that are due to improper
assembly, and/or product installation. HELIODYNE is not liable for possible costs resulting from
defects. In order for HELIODYNE to accept liability:
– Installation must have been carried out by a licensed specialized company (heating contractor or
plumber) following the version of installation instructions in force;
– HELIODYNE or its representative was given the opportunity to check complaints on site
immediately after any defect occurred;
– Confirmation exists that the system was commissioned properly and that the system was checked
and maintenance was performed annually by a specialized company licensed for this purpose. The
warranty agreed by HELIODYNE is only valid for their clients.
S O L A R H O T W A T E R
Ω
vs
°F
0
50
100
150
200
250
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
SENSOR TEMPERA
TURE °F
MEASURED RESISTANCE
Ω
