Hitachi RAS-10HRNM, Service Manual, Page: 476 / 482

12.10 Service and maintenance record using the 7-segment display
Customer’s name:________________________________ Date:____________________
Outdoor unit model (serial No. ) RAS- (Serial No. ) RAS- (Serial No. )
1. Operation mode
2. Test run start time
3. Data collect start time
4. Read out data from
7-segment in outdoor unit
4.1 Protection control code
4.2 Total capacity of I.U connected CP
4.3 Input/output state of outdoor
micro-computer
SC
52C FAN1 FAN2 20A 52C FAN1 FAN2 20A
20F 21 CH PSH 20F 21 CH PSH
4.4 Alarm code for abnormal
stoppage of compressor
AC
4.5 Inverter order frequency to
compressor
H1
4.6 Indoor order frequency to
compressor
H2
4.7 Air flow ratio Fo
4.8 O.U. expansion valve opening Eo
4.9 Temp. at the top of compressor Td
4.10 Evaporating temp. at heating TE
4.11 Ambient air temp. To
4.12 Cause of stoppage at inverter iT
4.13 Inverter secondary current A2
4.14 O.U. address nA
5. Indoor unit (unit No. 1)
5.1 I.U. expansion valve opening EA
5.2 Liquid pipe temp. of I.U. (Freeze
protection)
LA
5.3 I.U. intake air temp. iA
5.4 I.U. discharge air temp. oA
5.5 Cause of I.U. stoppage dA
6. Indoor unit (unit No. 2)
6.1 I.U. expansion valve opening EA
6.2 Liquid pipe temp of I.U. (Freeze
protection)
LA
6.3 I.U. intake air temp. iA
6.4 I.U. discharge air temp. oA
6.5 Cause of I.U. stoppage dA
7. Indoor unit (unit No. 3)
7.1 I.U. expansion valve opening EA
7.2 Liquid pipe temp. of I.U. (Freeze
protection)
LA
7.3 I.U. intake air temp. iA
7.4 I.U. discharge air temp. oA
7.5 Cause of I.U. stoppage dA
8. Indoor unit (unit No. 4)
12 Maintenace notes
468
SMGB0060 rev. 1- 12/2010