Items To Check Prior To Test Run - Technibel GRV250R5TAA Technical Data & Service Manual

Split system air conditioners
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(11) Items to Check Prior to Test Run

(1) Turn on the power supply switch more than 5 hours before in order to charge the crank
case heater.
(2) Fully open the outdoor service valve after making the leak inspection of field connected
tubing, vacuuming, and gas charging if necessary.
(3) Check the capacity code and model code setting.
* The factory setting is as shown in the table. Double check it.
* The capacity code is set by S4 (green, 4P DIP switch) on outdoor control PCB.
The model code is set by S5 (black, 2P DIP switch) on outdoor control PCB.
S4 (green or Blue) capacity code
(4P DIP switch)
ON
1
• R407 Models: GRV type
S4. Capacity code
No.
Outdoor PCB
Model No.
1
250 type (1 phase)
ON
250 type (3 phase)
ON
360 type (3 phase) OFF
480 type (3 phase) OFF OFF
ON side
2
3
4
OFF side
2
3
4
ON
ON
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
IV - 51
4. Service procedures
S5 (black) model code
(2P DIP switch)
ON
ON side
1
2
OFF side
S5. Model code
No.
Outdoor PCB
Model No.
1
GRV250R5TAA
OFF
GRV250R7TAA
OFF
GRV360R7TAA
OFF
GRV480R7TAA
OFF
S5. Model code
No.
Outdoor PCB
Model No.
1
GRV250L5TAA
ON
GRV250L7TAA
ON
GRV360L7TAA
ON
GRV480L7TAA
ON
1577_C_I
2
ON
OFF
OFF
OFF
2
ON
OFF
OFF
OFF
1
2
3
4
5

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