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Checking Universal Comm. Kit installation
1. Check that Control assembly is correctly installed.
‐ You can choose either indoor unit attachment type or indoor unit separation type.
‐ Check the length of connection cable of Control assembly is correct.
‐ Check that the connection of Control assembly connecting cable is correct.
‐ Make sure the location has waterproof and fire prevention structure with a specially designed case. ( For
the separation type, it is essential.)
‐ Make sure the Control assembly is not exposed to sunlight or rain.
2. Check that the EEV Assembly is correctly installed.
‐ Check that EEV Assembly is installed inside the indoor unit.
‐ Check whether IN and OUT pipe connection is correct.
‐ Must check the EEV Assembly main body is installed vertically.
‐ Check that the EEV Assembly is installed at the place where condensate water can be drained.
3. Check that the EVA IN/OUT sensor is correctly installed.
‐ After attaching the EVA IN sensor after the distributor and on the lowest temperature pipe of a heat
exchanger, check that you have insulated the attached sensor.
‐ After installing the EVA OUT sensor 7.87" (200mm) after the header of AHU heat exchanger, check that
you have insulated the attached sensor.
4. Amount of additional refrigerant for universal comm. Kit:
‐ You must add 0.063kg of refrigerant for every 1 kW of the universal comm. kit capacity increase.
• Control assembly should be installed with the CASE that has water proof and fire prevention
function.
CAUTION
Test operation
1. Before supplying power, measure the grounding between the power terminal(1phase: L, N) and
Universal Comm. Kit using the DC 500 V insulation-resistance tester.
‐ Measured value should be more than 30 MΩ.
• Do not measure the communication terminal as the communication circuit may get damaged.
• For the communication terminal, check the short circuit using a general circuit tester.
CAUTION
2. Before supplying power, check the voltage of the power(L, N), and turn the switch on.
N
115-230VAC
L
3. After finishing and checking installation and the items below, check that the Universal Comm. Kit
operates correctly.
‐ The firmness of Universal Comm. Kit installation environment and safety
‐ Thermal resistance of insulator for refrigerant pipe
‐ Leakage of refrigerant gas
‐ Drainage status
‐ Power connection status
‐ Connection status with a circuit breaker and grounding status
‐ Correct operation for each operation mode
DB68-06643A-03_IM_ACC UCK Kit_AA_EN.indd 53
DB68-06643A-03_IM_ACC UCK Kit_AA_EN.indd 53
<MCCB/ELB or ELCB>
53
2023-01-13 오전 11:35:19
2023-01-13 오전 11:35:19
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