[Selecting earth leakage breaker (NV)]
To select NF or NV instead of a combination of Class B fuse with switch, use the
following:
Fuse (class B)
63 A
Earth leakage
NV100-SW
breaker ELB
60 A
(with over-load protection)
100 mA 0.1s or less
NV is a product name of MITSUBISHI.
•
Power supply cords of appliances shall not be lighter than design 245 IEC57.
•
A switch with at least 3 mm contact separation in each pole shall be provided
by the Air conditioner installation.
Example
[Fig. 9.0.1] (P.4)
(1) Normal Connecting
(2) Grouping (16 units)
A Power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Remote controller
E Address
[Unit-MA remote controller cable/cord] (For metal pipe)
When extending the remote controller cable,
Types of cable/cord
remote controller cables shall not be
lighter than design 245 IEC53.
Number of cable/cord
Diameter of cable/cord
Total extention
10. Specifications for installing the belt
1. Set the parallel angle of the fan and the motor pulley as shown in the
[Fig. 10.0.1] and table 1.
2. Set the tension of the per one belt when the flexion load is within the range as
shown in the [Fig. 10.0.2] and table 2 below at the proper flexion.
3. Adjust the suitable tension after the belt sit properly across the pulley (after
more 24 - 28 hours working).
When the new belt is used, adjust the suitable tension about the 1.3 times of
the maximum value of the flexion load.
4. Readjust the belt every 2,000 hours after the first adjustment.
Exchange the belt when the belt's surroundings length has expanded by 2 %
including the first expansion of the belt. (about 1 %)
(about 8,000 hours converted working time)
When selecting fan operation "Stop" (Mode no. 25 "2" in table 2 of page 11),
readjust the belt every 1,000 hours after the first adjustment.
[Fig. 10.0.1] / [Fig. 10.0.2] (P.5)
<A> Parallel degree of pulley
<B> Belt tension
A Flexion load (W)
11. Modification method of fan direction (From side flow to top flow)
This product can be changed from side flow to top flow in the field.
Modify if necessary as follows.
[Fig. 11.0.1] (P.5)
A Top panel
B Cover (outer side)
D Panel
E Fan
14
MA remote controller
2 core cable
2
0.3 ~ 1.25 mm
Max. 200 m
C Flange
F Cover (inner side)···2pcs
9.1. Address settings
Unit address settings
•
During address setting, set all the dip switches SW1 (3 - 6) on the outdoor-side
controller board to <when shipped from factory: all OFF>. (Address setting is
not necessary for 1:1 or Free multi-component systems.)
•
Functions of SW1 according to switch setting are shown below.
•
To control a group of units, address must be assigned to each unit.
(SW1 of outdoor-side contoroller)
OFF
ON
Model
1
2
1
3
2 Error history clear
4
3 Refrigerant system
5
address setting
6
4
5
6
[Fig. 9.1.1] (P.5)
9.2. Wiring connection
•
Using the conduit mounting plates
Conduit mounting plates are supplied in three sizes (ø27, ø34, ø40). Use the
mounting plate that fits the outer diameter of the wire to be used.
[Fig. 9.2.1] (P.5)
A When installing conduct from bottom panel
B When installing conduct from front panel
C Mounting plate (attached)
D Knock-out hole
table 1
parallel angle
pulley
10 or less
pulley
table 2
pulley
smaller out diameter
type
(mm)
~ 135
136 ~ 160
B
161 ~
1 Remove the top panel A, cover (outer side) B, flange C, panel D and cover
(inner side) F. (STEP 1)
2 Modify the fan E direction. (STEP 2)
3 Re-install the top panel A, cover B, flange C and panel D. (STEP 3)
Note:
In the case of top flow, the inner cover F F F F F is not necessary.
Functions according to switch setting
ON
–
–
Ordinary
Clear
Unit address
↑
Settings 0 - 15
↑
↑
note
K ( " )
gap of 3 mm every 1 m
Flexion load W
(N)
22 ~ 29
27 ~ 34
29 ~ 37
OFF
–