Mark ERV500 - Page 14

14
COMMISSIONING
Check that all cable sizes, circuit breakers and wire connections are correct before following below com-
missioning steps:
1. Press button to turn on/off the ventilator.
2. Match the correct speed to ERV. Press for 6 seconds to enter parameters setting and at this time the
parameter number is shown in the middle of the screen, press button to switch to parameter No. 21
(refer to parameters list in comming page) then press shortly to enter the parameter setting, default
value “0” esh at the top right corner, press UP and DWON buttons to change the value according to
below table (ERV code Vs Models) then press button again to conrm setting. With the same way to
change parameters number 23 to be value 2 (10 speeds DC fan control).
Code Models
3 ERV500
2 ERV1000
2 ERV2000
3. Then check the mode and fan speed switch. Press button shortly to switch to OA, RA, SA or EA
mode*, check whether the temperature of the corresponding mode is correct. Under SA or RA mode,
Press to switch the fan speed, check if the airow is adjusted corresponding to H speed ,
M speed and L speed .
4. Check the operation of bypass. The default opening temperature of bypass is 19-21C (adjustable),
press button to check the temperature of OA. If the present OA temperature is among 19-21C,
then bypass will open automatically. If the OA temperature is not within 19-21C, say 18C, then press
button more than 6 seconds to enter the parameter setting. Press button to switch to parameter
number 02, default value 19 ashes shown at the top right corner. Then press button shortly to
enter setting, by pressing buttons and set the value to be “X”. Then press to conrm.
To test that the bypass opens, the temperature OA must be greater than or equal to value "X" of para-
meter 02 and less than value "X + Y" of parameters 2 and 3 together. X = OA < (X + Y)
Note: the opening / closing of the bypass will be delayed for about 1 minute.
Note: reset the values after this test!
Parameter 2: X = 19
Parameter 3: Y = 3
*OA = Outdoor air
RA = Extract air
SA = Supply air
EA = Exhaust air