Installation Check And Test Operation; Checking Ahu Kit Installation; Test Operation - Samsung MCM-D201N Installation Manual

Installation check and test operation

Checking AHU KIT installation

1. Check that ASS'Y Control is correctly installed.
- You can choose either AHU attachment type or AHU separation type.
- Check the length of connection cable of ASS'Y Control is correct.
- Check that the connection of ASS'Y Control 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 ASS'Y Control is not exposed to sunlight or rain.
2. Check that the ASS'Y EEV is correctly installed.
- Check that ASS'Y EEV is installed inside the AHU.
- Check whether IN and OUT pipe connection is correct.
- Must check the ASS'Y EEV main body is installed vertically.
- Check that the ASS'Y EEV 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 200 mm after the header of AHU heat exchanger, check that you have insulated the
attached sensor.
• ASS'Y Control 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 AHU 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
220-240 V
L
3. After finishing and checking installation and the items below, check that the AHU KIT operates correctly.
- The firmness of AHU 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
<MCCB/ELB or ELCB>
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