Borg & Overstrom 818, Руководство по установке и эксплуатации

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818 Sport Models
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Azure Technical Advice
If the Compressor does not run:
1. Check the LED display. For Cold & Ambient models the green (top) LED should always be on and the Yellow
(Bottom) when cooling is called for. If the green is off then check the machines main power supply and the
on/off switch.
For the Hot & Cold models the green (top) LED should always be on. If off, check the machines main power
supply and the COLD on/off switch.
2. Switching on the Compressor measure the current draw. No operation, but a high draw indicates a jammed
compressor (contact Azure Technical Support).
3. The wiring loom can be traced and the live supply check periodically moving towards the compressor (if there is
a break at the Cold Thermostat turn the screw clockwise and check whether this closes the circuit. If this
doesn’t even when at max, the thermostat should be replaced. Alternatively, for testing purposes only, the
thermostat could be bridged).
4. Remove the compressor relay cover and carefully remove the relays. If the power has been even recently
connected to the compressor, the solid stat relay will be energised and will need discharging.
5. Check the Compressor resistance readings
Approx readings could be: R-C 12ohms
S-C 34ohms
R-S 46 Ohms (sum of both)
N.B. There should always be some variation between compressors. What should be identified is large
discrepancies/unbalanced readings.
Also, especially in the case of large discrepancies/unbalanced readings, check for continuity between any of the
terminals and the compressor casing. A current will indicate a shorted winding (Contact Azure Technical
support).
6. Checking the relays:
Caution: Ensure the larger relay is discharged if recently energised. (This can be discharged by 2MR, 2W
resister in the circuit).
Clearly, the best and surest way to test the relays is to replace them one by one and check the compressor
operation. Otherwise, each relay component can be basically tested using a meter
The Solid State Relay should read approx 3-6 closed circuit
3 ≈ 36 Ω (Ohms)
The Klichson (overload) should read approx ≈ 1.7Ω (Ohms)
7. Ensure the terminals are clean and good contact is made.
S
C
R