HVAC PREVENTIVE
MAINTENANCE
report
FIRST PARTY : EMDADAT AL MARWAH CONT.CO.
P. O. BOX 14327 RIYADH 11473
KINGDOM OF SAUDI ARABIA
SECOND PARTY : THE CITY CEMENT COMPANY
ATTN. : MR. ENG. AHMED ABDELRADY
TEL : 055-027-6987
REPORT ON SPECIAL PREVENTIVE MAINTENANCE
RECOMMENDATIONS
PURPOSE:
THIS REPORT OUTLINES THE SPECIAL PREVENTIVE MAINTENANCE PROCEDURES
RECOMMENDED FOR PACKAGE UNITS AND CHILLER COMPRESSORS. FOLLOWING
THESE GUIDELINES WILL HELP ENSURE THE LONGEVITY AND EFFICIENCY OF
EQUIPMENT.
PREVENTIVE MAINTENANCE FOR (2024)
LINE 1- CHILLER
UNIT STATUS AS OF 31-01-2024 PREVENTIVE MAINTENANCE FOR 2024
STAINER CLEANING, REGULAR, NEED
TO CHANGE CONTROL CABLE, DRAIN
OLD CIRCULATION WATER & REFILL
L1CU1 WORKING NORMALLY
NEW WATER, PLC SERVICING, CHILLED
WATER LAB TEST, WATER SERVICE,
CHEMICAL SERVICE.
STAINER CLEANING, NEED TO CHANGE
CONTROL CABLE, DRAIN OLD
CIRCULATION WATER & REFILL NEW
L1CU2 WORKING NORMALLY
WATER, PLC SERVICING, CHILLED
WATER LAB TEST, REGULAR WATER
SERVICE, CHEMICAL SERVICE
CIRCUIT #1- NEED TO DO LEAK ARREST.
STAINER CLEANING, NEED TO CHANGE
CIRCUIT 2 WORKING CONTROL CABLE, DRAIN OLD
NORMALLY, CIRCUIT 1 GAS CIRCULATION WATER & REFILL NEW
L1CU3
LEAKAGE (134A GAS NOT WATER, PLC SERVICING, CHILLED
AVAILABLE IN STORE WATER LAB TEST, GAS NOT
AVAILABLE IN THE STORE FOR GAS
CHARGING AFTER LEAK ARREST. (134A)
NEED TO CHANGE CONTROL CABLE,
PLC SERVICING, STAINER CLEANING,
DRAIN OLD CIRCULATION WATER &
L1CU4 WORKING NORMALLY
REFILL NEW WATER, CHILLED WATER
LAB TEST, REGULAR WATER SERVICE &
CHEMICAL SERVICE
NEED TO CHANGE CONTROL CABLE,
L1CU5 WORKING NORMALLY STAINER CLEANING, PLC SERVICING,
CHILLED WATER LAB TEST, DRAIN OLD
CIRCULATION WATER & REFILL NEW
WATER, REGULAR WATER SERVICE &
CHEMICAL SERVICE
NEED TO CHANGE CONTROL CABLE,
CHILLED WATER LAB TEST, DRAIN OLD
CIRCULATION WATER & REFILL NEW
L1CU6 WORKING NORMALLY
WATER, PLC SERVICING, STAINER
CLEANING, REGULAR WATER SERVICE
& CHEMICAL SERVICE
LINE 1 PACKAGE AC
UNIT STATUS AS OF 31-01-2024 PREVENTIVE MAINTENANCE FOR 2024
RAW MILL
CIRCUIT 3,4,5,6 WORKING CIRCUIT #1 & #2 - NEED TO REPLACE
L1RM- NORMALLY, CIRCUIT 1,2 CONDENSER COIL, SINCE COIL IS NOT
MV1 CONDENSER COIL DAMAGE, NOT AVAILABLE IN STORE, IT CANNOT BE
AVAILABLE IN STORE REPLACED. PLC SERVICING.
L1RM- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MV2 SERVICE & CHEMICAL SERVICE
CIRCUIT 1,2,4,5,6 WORKING CIRCUIT #3 - PLC SERVICING,
L1RM- NORMALLY, COMPRESSOR COMPRESSOR NEED TO BE REPLACED
MV3 DAMAGE & 134A GAS IS NOT WHICH WAS NOT AVAILABLE IN STORE
AVAILABLE IN STORE INCLUDING GAS 134A
PLC SERVICING, REGULAR WATER
L1RM-LV1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CIRCUIT 1,3,5 WORKING CIRCUIT #2, #4, #6 - PLC SERVICING,
NORMALLY, CIRCUIT 2,4,6 CONDENSER COIL NEEDS TO BE
L1RM-LV1
CONDENSER COIL & 134A GAS REPLACED, COIL & GAS 134A NOT
NOT AVAILABLE IN STORE. AVAILABLE IN THE STORE.
COOLER
PLC SERVICING, REGULAR WATER
L1CO1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
L1CO2 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CCR
CIRCUIT 3,4,5,6 WORKING CIRCUIT #1 PLC SERVICING,
NORMALLY, CIRCUIT 1 CONDENSER COIL NEED TO REPLACED.
L1CCR-
CONDENSER COIL DAMAGE, CONDENSER COIL NOT AVAILABLE IN
GF1
CIRCUIT 2 COMPRESSOR STORE., CIRCUIT # 02 PLC SERVICING,
MECHANICAL PROBLEM COMPRESSOR RECONDITIONING
REQUIRED, DUCT CANVAS NEED TO BE
REPLACED
CIRCUIT 3,4,5,6 WORKING CIRCUIT #1  - PLC SERVICING,
NORMALLY, CIRCUIT1,2 CONDENSER COIL NEEDS TO BE
L1CCR-
CONDENSER DAMAGE, REPLACED, CONDENSER COIL & GAS
FF1
CONDENSER COIL AND 134A GAS 134A NOT AVAILABLE IN STORE, DUCT
NOT AVAILABLE IN STORE CANVAS NEED TO BE REPLACED
PLC SERVICING, DUCT CANVAS NEED
L1CCR-
WORKING NORMALLY TO BE REPLACED, REGULAR WATER
TF1
SERVICE & CHEMICAL SERVICE
CEMENT MILL
CIRCUIT 2,4,5,6 WORKING
CIRCUIT #1 - PLC SERVICING,
NORMALLY, CIRCUIT 1
CONDENSER COIL TO BE REPLACED,
L1CM- CONDENSER COIL DAMAGE
CIRCUIT #3 COMPRESSOR & GAS 134A
MV1 CIRCUIT 3 COMPRESSOR
NOT AVAILABLE IN STORE, SPARE
DAMAGE. SPARE PARTS NOT
PARTS NOT AVAILABLE
AVAILABLE
PLC SERVICING, REGULAR WATER
L1CM-LV1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
POWER PLANT
PLC SERVICING, REGULAR WATER
L1PP-CR1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
UNIT OFF, CONDENSER COIL PLC SERVICING, CONDENSER COIL AND
AND COMPRESSOR DAMAGE. COMPRESSOR NEEDS TO BE REPLACED,
L2PP-CR1
CONDENSER COIL NOT CONDENSER COIL AND COMPRESSOR
AVAILABLE IN STORE. NOT AVAILABLE IN STORE
L1PP- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MVSGR1 SERVICE & CHEMICAL SERVICE
LIPP- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MVSGR2 SERVICE & CHEMICAL SERVICE
L2PP- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MVSGR1 SERVICE & CHEMICAL SERVICE
L2PP- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MVSGR2 SERVICE & CHEMICAL SERVICE
WHR
PLC SERVICING, REGULAR WATER
L1WHR- SERVICE & CHEMICAL SERVICE
WORKING NORMALLY
MCCR1 (WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
L1WHR- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MCCR2 SERVICE & CHEMICAL SERVICE
(WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
PLC SERVICING, REGULAR WATER
L1WHR- SERVICE & CHEMICAL SERVICE
WORKING NORMALLY
CR1 (WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
RMP
PLC SERVICING, REGULAR WATER
L1RMP1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CMRP (A&B)
PLC SERVICING, REGULAR WATER
RP1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
RP2 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
RP3 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
RP4 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
LINE 2 CHILLER
UNIT STATUS AS OF 31-01-2024 PREVENTIVE MAINTENANCE FOR 2024
CIRCUIT #2 - PLC SERVICING, CHILLED
CIRCUIT 1 WORKING
WATER LAB TEST, DRAIN OLD
NORMALLY, CIRCUIT 2
CIRCULATION WATER & REFILL NEW
L2CU1 COMPRESSOR AND BARREL
WATER, STAINER CLEANING,
DAMAGE SPARE PARTS NOT
COMPRESSOR AND BARREL NEEDS TO
AVAILABLE IN STORE
BE RECONDITIONED
CIRCUIT # 2 - STAINER CLEANING,
CIRCUIT 1 WORKING CHILLED WATER LAB TEST, DRAIN OLD
NORMALLY, CIRCUIT 2 GAS CIRCULATION WATER & REFILL NEW
L2CU2
LEAKAGE ,134A GAS NOT WATER, PLC SERVICING, NEED TO LEAK
AVAILABLE IN STORE. ARRESTED,134A GAS NOT AVAILABLE
IN STORE
PLC SERVICING, CHILLED WATER LAB
TEST, DRAIN OLD CIRCULATION WATER
L2CU3 WORKING NORMALLY & REFILL NEW WATER, STAINER
CLEANING, REGULAR WATER SERVICE
& CHEMICAL SERVICE
CIRCUIT 1 WORKING CIRCUIT #2 - PLC SERVICING, STAINER
NORMALLY, CIRCUIT 2 CLEANING, COMPRESSOR AND BARREL
L2CU4
COMPRESSOR AND BARREL NEEDS TO BE RECONDITIONED, DRAIN
DAMAGE. EXPANSION VALVE OLD CIRCULATION WATER & REFILL
134A GAS NOT AVAILABLE IN NEW WATER, CHILLED WATER LAB
STORE TEST, EXPANSION VALVE NEED TO BE
REPLACED, EXPANSION VALVE & 134A
GAS NOT AVAILABLE IN STORE,
STAINER CLEANING, CHILLED WATER
LAB TEST, PLC SERVICING, DRAIN OLD
L2CU5 WORKING NORMALLY CIRCULATION WATER & REFILL NEW
WATER, REGULAR WATER SERVICE &
CHEMICAL SERVICE
STAINER CLEANING, CHILLED WATER
LAB TEST, PLC SERVICING, DRAIN OLD
L2CU6 WORKING NORMALLY CIRCULATION WATER & REFILL NEW
WATER, REGULAR WATER SERVICE &
CHEMICAL SERVICE
LINE 2 PACKAGE AC
UNIT STATUS AS OF 31-01-2024 PREVENTIVE MAINTENANCE FOR 2024
RAW MILL
L2RM- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MV1 SERVICE & CHEMICAL SERVICE
CIRCUIT #2, #3 - PLC SERVICING, GAS
CIRCUIT 1,4,5,6,7,8 WORKING
CHARGING REQUIRED, 134A GAS NOT
L2RM- NORMALLY, CIRCUIT 2,3 LOW
AVAILABLE IN STORE, PLC SERVICING,
MV2 GAS, 134A GAS NOT AVAILABLE
REGULAR WATER SERVICE &
IN STORE.
CHEMICAL SERVICE
L2RM- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MV3 SERVICE & CHEMICAL SERVICE
L2RM- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MV4 SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
L2RM-LV1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
L2RM-LV2 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
COOLER
PLC SERVICING, REGULAR WATER
L2CO1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
PLC SERVICING, REGULAR WATER
L2CO2 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CEMENT MILL
L2CM- PLC SERVICING, REGULAR WATER
WORKING NORMALLY
MV1 SERVICE & CHEMICAL SERVICE
(WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
PLC SERVICING, REGULAR WATER
L2CM- SERVICE & CHEMICAL SERVICE
WORKING NORMALLY
MV2 (WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
PLC SERVICING, REGULAR WATER
SERVICE & CHEMICAL SERVICE
L2CM-LV1 WORKING NORMALLY
(WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
RMP
PLC SERVICING, REGULAR WATER
SERVICE & CHEMICAL SERVICE
L2RMP1 WORKING NORMALLY
(WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
RMH
PLC SERVICING, REGULAR WATER
L2RMH1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CMP
PLC SERVICING, REGULAR WATER
L2CMP1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
WATER TREATMENT
PLC SERVICING, REGULAR WATER
L2WT1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
L/S CRUSHER
PLC SERVICING, REGULAR WATER
L2L/SC1 WORKING NORMALLY
SERVICE & CHEMICAL SERVICE
CORRECTIVE CRUSHER
PLC SERVICING, REGULAR WATER
SERVICE & CHEMICAL SERVICE
L2CC1 WORKING NORMALLY
(WATER LINE WAS NOT AVAILABLE
FOR MAINTENANCE SERVICE)
1. PACKAGE UNITS
RECOMMENDATION:
• INSPECT OLDER COMPRESSORS IN THE PACKAGE UNITS REGULARLY.
• CHARGE OIL IF NECESSARY TO MAINTAIN OPTIMAL PERFORMANCE.
RATIONALE:
REGULAR OIL CHECKS IN OLDER COMPRESSORS HELP PREVENT WEAR AND
TEAR, ENSURING THE UNIT OPERATES EFFICIENTLY AND RELIABLY.
2. CHILLER COMPRESSORS
RECOMMENDATION:
• OIL REPLACEMENT: CHANGE THE OIL IN CHILLER COMPRESSORS AT
A MINIMUM INTERVAL OF EVERY 3 YEARS.
• LABORATORY OIL TEST: PERFORM AN OIL TEST IN A LABORATORY
EVERY 3 YEARS TO EVALUATE THE OIL’S CONDITION. BASED ON THE TEST
RESULTS, ASSESS IF AN OIL CHANGE IS NECESSARY.
• OIL PRESSURE ALARM: IF THE OIL PRESSURE ALARM ACTIVATES, TOP
UP THE OIL IMMEDIATELY.
RATIONALE:
ROUTINE OIL REPLACEMENT AND TESTING ARE CRITICAL FOR SUSTAINING
COMPRESSOR PERFORMANCE AND PREVENTING COSTLY BREAKDOWNS.
IMMEDIATE ACTION ON PRESSURE ALARMS MITIGATES POTENTIAL DAMAGE
DUE TO LOW OIL LEVELS.
3. CHILLER UNITS OIL CHANGE
RECOMMENDATION:
• FOLLOW THE OIL CHANGE INTERVALS LISTED IN THE TABLE BELOW
FOR EACH TYPE OF CHILLER UNIT.
LINE 01 CHILLER
UNIT NO CIRCUIT NO OIL CHANGED DATE DUE DATE TO
CHANGE OIL
01 01 16-12-2021 16-12-2024
02 21-12-2021 21-12-2024
02 01 23-12-2021 23-12-2024
02 25-12-2021 25-12-2024
03 01 15-10-2021 (NEW 15-10-2024
COMPRESSOR FIXED DATE)
02 16-03-2022 16-03-2025
04 01 19-03-2022 19-03-2025
02 19-10-2021 (NEW 29-10-2024
COMPRESSOR FIXED DATE)
05 01 22-03-2022 22-03-2025
02 26-03-2022 26-03-2025
06 01 28-03-2022 28-03-2025
02 31-03-2022 31-03-2025
LINE 02 CHILLER
UNIT NO CIRCUIT NO OIL CHANGED DATE DUE DATE TO
CHANGE OIL
01 01 05-08-2024 (NEW 05-08-2025
COMPRESSOR FIXED DATE)
02
02 01 15-11-2022 15-11-2025
02 07-12-2022 07-12-2025
03 01 30-03-2023 30-03-2026
02 11-02-2023 11-02-2026
04 01 15-11-2022 15-11-2025
02
05 01 11-03-2023 11-03-2026
02 05-06-2023 05-06-2026
06 01 11-02-2023 11-02-2026
02 08-06-2023 08-06-2026
RATIONALE:
CHANGING OIL AT THE RECOMMENDED INTERVALS FOR EACH CHILLER UNIT
TYPE MAXIMIZES EQUIPMENT LIFE AND MINIMIZES UNEXPECTED FAILURES.
CONCLUSION:
THESE PREVENTIVE MAINTENANCE GUIDELINES WILL ENHANCE THE
OPERATIONAL RELIABILITY AND LONGEVITY OF BOTH PACKAGE UNITS AND
CHILLER COMPRESSORS. IMPLEMENTING THIS SCHEDULE WILL MINIMIZE
DOWNTIME AND MAINTAIN OPTIMAL PERFORMANCE LEVELS.
THIS REPORT PRESENTS AN UPDATED STATUS OF THE UNIT AS OF JANUARY 31,
2024. IN ACCORDANCE WITH OUR 2023 ANNUAL MAINTENANCE CONTRACT AT
THE MARATH CITY CEMENT PLANT, IT PROVIDES AN OVERVIEW OF PREVENTIVE
MAINTENANCE ACTIVITIES, ADDRESSING ALL REQUIREMENTS RELATED TO THE
UNIT’S CONDITION UP TO 31-01-2024. THE REPORT ALSO INCLUDES
RECOMMENDATIONS FOR THE PREVENTIVE MAINTENANCE AND OUTLINES “OUR
VISION FOR THE CITY CEMENT PLANT IN MARATH FOR THE YEAR 2024”.
ACKNOWLEDGMENT: THE AFOREMENTIONED HANDOVER & PREVENTIVE
MAINTENANCE REPORT HAS BEEN RECEIVED.
CITY CEMENT COMPANY
DATE: -
SIGNATURE: -
EMDADAT AL MARWAH CONTRACTING CO.
RIYADH.
