Comprehensive Annual Maintenance Contract for the maintenance of various makes of Roof Mounted AC package units fitted in RMAC coaches based at Thiruvananthapuram Division of Southern Railway for a period of two years

A1-Maintenance Schedule of Out-of-warranty RMPUs in SGAC coaches

Trip Schedule (rate for total No. of trip attentions done in the month)

Monthly Schedule

Three Monthly Schedule

Six Monthly Schedule

Nine Monthly (IOH) schedule

Monthly schedule for SPART RMPU

A2-Operation of condition basis items for breakdown attention of RMPUs

Supply of new Scroll compressor ZR61KCTFD522 to work in R22 and ZR61KCETFD522 to work in R407C

Removal of defective out of warranty scroll comp. and re-fitment of healthy Scroll 2 comp. (duly operating Item No.1 above) complete with procedure as per RDSO SMI/AC/0038 (Rev.0)- 2007 including gas charging & commissioning (Ownership of def. compressor will remain with Railways). Date of installation shall be clearly painted on the compressor

Supply of Condenser coil (RH or LH)

Removal of defective condenser coil assembly and fitment of Condenser coil assembly supplied by Railways.

Supply of Evaporator coil assembly (RH or LH)

Removal of defective Evaporator coil assembly and Fitment of Evaporator coil assembly supplied by Railways.

Provision of heater assembly duly modifying the RMPU in cases where heater is not available. (Heater assembly will be supplied by railways)

Supply of new fresh air filter as per latest RDSO drawing. Filters of RDSO approved make only should be provided in AC coaches and the make of the filters should be marked/printed on the frames of the filters

Removal of old fresh air filter and fitment of new fresh air filter as per latest RDSO drawing

Supply of new return air filter as per latest RDSO drawing. Filters of RDSO approved make only should be provided in AC coaches and the make of the filters should be marked/printed on the frames of the filters

Removal of old return air filter and fitment of return air filter supplied by railways

Supply of non-resilient mountings for RMPU (AVMs).

Removal of defective non-resilient mountings for RMPU (AVMs) and fitment of AVMs supplied by Railways (Lifting of RMPU by Railway)

Supply of Electronic thermostat as per latest RDSO specification

Removal of defective Electronic thermostat and fitment of Electronic Thermostat supplied by Railways.

Supply of Vane Relay as per latest RDSO specification

Removal of defective Vane Relay and fitment of Vane relay supplied by Railways

Supply of control transformer

Removal of defective control transformer and fitment of control transformer supplied by Railways

Supply of return air Canvas made up two of layers cotton canvas suitably stitched confirming to RDSO Specification No. RDSO/PE/SPEC/AC/0136/2009 (Rev.0) along with stainless steel 22 frame

Removal of defective return air Canvas and fitment of new two layer return air canvas supplied by Railways

Supply of Flexible duct assembly Canvas for conditioned air made up of two layers cotton canvas suitably stitched confirming to RDSO Specification No. RDSO/PE/SPEC/AC/0136/2009 (Rev.0) along with stainless steel frame

Removal of defective Flexible duct assembly Canvas for conditioned air and fitment of new canvas supplied by Railways

Supply of OHP unit with control wire, as per latest RDSO scheme

Removal of defective OHP unit and Fitment of OHP unit with control wire, supplied by Railways

Supply of Heater unit with sensor (OHP) as per latest RDSO drawing/ scheme

Removal of defective heater unit and fitment of Heater unit supplied by Railways

Supply of Blower motor

Removal of defective Blower motor and fitment of Blower motor supplied by Railways

Supply of Blower impeller (set of left and right side)

Removal of defective Blower impeller and fitment of Blower impeller supplied by railways

Supply of FRP condenser blades

Removal of defective condenser blades and fitment of FRP condenser blades supplied by Railways

Supply of FRP cover of RMPU including all the securing/ fastening items

Removal of defective FRP cover of RMPU and fitment of cover supplied by Railways

Supply of Condenser motor

Removal of defective condenser motor and fitment of condenser motor supplied by Railways

Supply of HP cutout

Removal of defective HP cutout and fitment of HP cutout supplied by Railways

Supply of LP cutout

Removal of defective LP cutout and fitment of LP cutout supplied by Railways Above/

Supply of Electronic Time delay relay

Removal of defective Electronic Time delay relay and fitment of Electronic Time delay relay supplied by Railways

Supply of Control cable harness

Removal of defective Control cable harness and fitment of harness supplied by Railways

Supply of Power cable harness

Removal of defective Power cable harness and fitment of harness supplied by Railways

Supply of OLP for Blower

Removal of defective OLP for Blower and fitment of OLP supplied by Railways

Supply of OLP for Condenser

Removal of defective OLP for Condenser motor and fitment of OLP supplied by Railways

Supply of OLP for Compressor

Removal of defective OLP for Compressor and fitment of OLP supplied by Railways

Supply of Filter Drier (Stainer/Capillary) unit

Removal of defective Filter Drier (Stainer Capillary) unit and fitment of unit supplied by Railways

Supply of MPCBs of various ratings used in AC control panel

Removal of defective MPCB and fitment of MPCB supplied by Railways

Supply of re-wounded blower motor

Supply of re-wounded condenser motor

Supply of 32A Contactor

Removal of defective 32A Contactor and fitment of 32A Contactor supplied by Railways

B1-Maintenance Schedules for In-warranty RMPUs with microprocessor

Trip Schedule (rate for total No. of trip attentions done in the month)

Monthly Schedule

Six Monthly Schedule

B2-Maintenance Schedules for Out of warranty RMPUs with

Trip Schedule (rate for total No. of trip attentions done in the month)

Monthly Schedule

Six Monthly Schedule

B3-Operation of condition basis items for breakdown attention of LHB

Supply of Condenser coil assembly (RH or LH)

Removal of defective condenser coil assembly and Fitment of Condenser coil assembly supplied by Railways

Supply of Evaporator coil (RH or LH)

Removal of defective Evaporator coil assembly and Fitment of Evaporator coil assembly supplied by Railways

Supply of new fresh air filter as per latest RDSO drawing. Filters of RDSO approved make only should be provided in AC coaches and the make of filters should be marked/ printed on the frames of the filters

Removal of old fresh air filter and fitment of fresh air filter supplied by Railways

Supply of new return air filter as per latest RDSO drawing. Filters of RDSO approved make only should be provided in AC coaches and the make of the filters should be marked / printed on the frames of the filters

Removal of old return air filter and fitment of return air filter supplied by Railways

Supply of non-resilient mountings for RMPU Anti Vibration Mounting (AVMs).

Removal of defective AVMs and Fitment of non-resilient mountings for RMPU to be supplied by Railways (AVMs).

Supply of Negative Temperature Coefficient sensor

Removal of defective Negative Temperature Coefficient sensor and Fitment of Negative Temperature Coefficient sensor supplied by Railways

Supply of Microprocessor controller confirming to RDSO Spec. No. RDSO/PE/SPEC/AC/0139-2009 (Rev-1) Type-I

Removing of defective microprocessor, repairing of the same and providing back the repaired microprocessor

Removing defective Microprocessor and fitment of microprocessor supplied by Railways

Supply of OHP 65 deg C fusible link and connecting wire

Removal of defective OHP and fitment of OHP 65 deg C, fusible link with connecting wire supplied by Railways

Locating refrigerant leaks, attending to the leaks and recharging refrigerant as per RDSO SMI 14 using necessary material including refrigerant, copper pipes and tools

Supply of Water proof bellows made of fire retardant material with metallic frame at both ends as per spec RDSO/PE/SPEC/AC/0136 (Rev.0)-2002 or latest

Removal of defective water proof bellows and fitment of Water proof bellows supplied by Railways

Supply of Heater unit with sensor, as per latest RDSO drawing / scheme

Removal of defective heater unit and fitment of Heater unit supplied by railways

Supply of Blower fan motor

Removal of defective blower fan motor and replacement with blower fan motor supplied by Railways

Supply of Blower impeller (RH or LH)

Removal of defective Blower impeller and replacement with Blower impeller supplied by Railways

Supply of FRP blades for condenser fan motor

Removal of defective blades of condenser fan motor and fitment of condenser fan blades supplied by Railways

Supply of FRP cover of RMPU including all the securing/ fastening items

Removal of defective FRP cover and fitment of FRP cover supplied by Railways

Supply of Condenser fan motor as per RDSO spec RDSO/PE/SPEC/AC/0059

Removal of defective Condenser fan motor and replacement with condenser fan motor supplied by Railways

Supply of HP cut out/Switch direct mounting type

Removal of defective HP cut out and replacement with HP cut out supplied by Railways

Supply of Dehydrator cum filter/Strainer capillary for liquid line

Removal of defective Dehydrator cum filter/Strainer capillary for liquid line and fitment of Dehydrator cum filter / Strainer capillary supplied by Railways)

Supply of Thermostatic expansion valve

Removal of defective Thermostatic expansion valve and fitment of Expansion valve supplied by Railways (All associated jobs like brazing, leak testing etc. and all types of gas and vacuum pumps required are to be done by the contractor

Supply of Pressure transmitter/sensor transducer 0-10 bar

Removal of defective Pressure transmitter/sensor/ transducer and fitment of Pressure transmitter/sensor/ transducer 0-10 bar supplied by Railways.

Supply of Pressure transmitter/sensor/transducer 0-40 bar

Removal of defective Pressure transmitter / sensor / transducer and fitment of Pressure transmitter / sensor / transducer 0-40 bar supplied by Railways.

Supply of Power cable harness as per RDSO spec No. RDSO/PE/SPEC/AC/0136 (Rev.0)-2009

Removal of defective Power cable harness & fitment of Power cable harness supplied by Railways

Supply of Cable for control (PTFE) as per JSS 50134

Removal of defective Cable for control PTFE & fitment of Cable supplied by Railways for control

Supply of Cage clamp type connectors for power & control

Removal of defective Cage clamp type connector and fitment of cage clamp type connector supplied by Railways

Supply of Harting Connector (Power)

Removal of defective Harting connector (Power) and fitment of connector supplied by Railways

Removal of defective MPCB and fitment of MPCB supplied by Railways

Supply of Harting connector (Control)

Removal of defective Harting connector (Control) and providing Harting connector supplied by Railways

Supply of humidity sensor

Labour cost for removal and replacement of defective humidity sensor with new one given by Railways

Supply of high pressure gauge (HP) (0-40 bar)

Labour cost for replacement of defective high pressure gauge (HP) (0-40 bar)

Supply of low pressure gauge (LP) (0-10 bar)

Labour cost for replacement of defective low pressure gauge (LP) (0-10 bar)

Supply of new SS welded round guard for condenser motor

Labour charges for removal of defective SS welded round guard for condenser motor and fitment of new one

Supply of new ESTI switch assembly with carriage

Labour charges for removal of defective ESTI switch assembly with carriage and fitment of new one

Supply of new low pressure control switch (auto reset)

Labour charges for removal of defective low pressure control switch KP-1 (auto reset) and fitment of new one (All associated jobs like brazing, leak testing etc. and all types of gas and vacuum pumps required are to be done by the contractor)

Supply of new high pressure control switch (auto reset) Danfoss make KP-5/Alco make PS3-AP4HNK23/20+/-0.3 bar

Labour charges for removal of defective high pressure control switch KP-1 (auto reset) and fitment of new one (All associated jobs like brazing, leak testing etc. and all types of gas and vacuum pumps required are to be done by the contractor)

Supply of new liquid cum moisture indicator

Labour charges for removal of defective liquid cum moisture indicator and fitment of new one (All associated jobs like brazing, leak testing etc. and all types of gas and vacuum pumps required are to be done by the contractor)

Supply of new AC On-Off rotary switch

Labour charges for removal of defective AC On-Off rotary switch and fitment of new one

Supply of new selector switch for pressure gauge meter for 4 Nos. of compressors

Labour charges for removal of defective selector switch for pressure gauge meter for 4 Nos. of compressor and fitment of new one

Supply of new set point generator switch

Labour charges for removal of defective set point generator switch and fitment of new one

Supply of new return air duct with associated accessories in all types of LHB AC coaches

Labour charges for removal of defective return air duct and fitment of new one with all associated accessories

Supply of new fresh air duct with associated accessories

Labour charges for removal of defective fresh air duct and fitment of new one with all associated accessories

Supply of new compressor contactor type #LS 18K 10 77-137V DC AEG make or TAL 40-30-01+RT5/150 CAS-22 M ABB make or RDSO/RCF approved make

Labour charges for removal of defective compressor contactor and fitment of new one with all associated accessories

Supply of new condenser motor contactor

Labour charges for removal of defective condenser motor contactor and fitment of new one

Supply of new blower motor contactor type #LS 4K 10 B 77-137V DC AEG make (with diode on HS 7K 01) or TAL 16-30/110V DC +RT5/150 CAS-012 M ABB make or RDSO/RCF approved make

Labour charges for removal of defective blower motor contactor and fitment of new one

Supply of new DC/DC converter for flapper motor 110V/24V, 1.5A type CPE-24V/2.5V ABB make

Labour charges for removal of defective DC/DC converter for flapper motor and fitment of new one

Supply of new Blower housing complete with motor and runner by new assembly

Labour charges for removal of defective Blower housing complete with motor and runner and fitment of new one

Supply of new Double Inlet Centrifugal Blower 415V, 3 phase, 50Hz, 120W, 450m 3hr. discharge for exhausting air from lavatory/switch board cabinet of RDSO approved make

Labour charges for removal of Double Inlet Centrifugal Blower 415V, 3 phase, 50Hz, 120W, 450m 3hr. discharge for exhausting air from lavatory/switch board cabinet and fitment of new one

Supply of Multifunctional Monitoring Relay for 3 phase main suitable for 750V system for monitoring phase parameter, light phase sequence, phase failure, over & under voltage, and phase unbalanced. Type: CM-MPN-72 & make: ABB, type: CM-MPN-72

Labour charges for removal of defective Multifunctional Monitoring Relay for 3 phase main suitable for 750V system and fitment of new one

Supply of new DC/DC converter 110V/24V, 20A Model No. 300-SL-24 or equivalent, make: Powertech/ABB/Cosel/ Aptech

Labour charges for removal of DC/DC converter 110V/24V, 20A and fitment of new one

Supply of Manual Valve HBLK 6 Indfoss (1/4 inch) with new one

Replacement of defective Manual Valve HBLK 6 Indfoss (1/4 inch) with new one

Supply of Manual Valve HBLK 12 Indfoss (1/2 inch) with new one

Labour charges for replacement of defective Manual Valve HBLK 12 Indfoss (1/2 inch)

Labour charges for removal of defective hinges/latch of side entry hood cover (Return air filter cover) by new one

Supply of Strainer Capillary of RDSO approved make

Labour charges for removal of defective Strainer Capillary (All associated jobs like brazing, leak testing etc. and all types of gas and vacuum pumps required are to be done by the 103 contract

Supply of Brass Distributor 8 hose inlet 19 small of RDSO approved make

Labour charges for removal of defective Brass Distributor 8 hose inlet 19 small

Supply of Gas Pressure Spring E10/22-685, 5-300-WG-WG500NEd Stobo with new one

Labour charges for replacement of defective Gas Pressure Spring E10/22-685, 5-300- WG-WG500NEd Stobo with new one

Supply of new Supply Air Canvas with associated accessories in all type of LHB AC coaches

Labour charges for removal of defective supply air canvas and fitment of new one with associated accessories in all type of LHB AC coaches

Supply of 3 pole C series 10 Amps MCB for evaporator motor and condenser motor

Labour charges for removal of defective 3 pole C series 10 Amps MCB for evaporator motor and condenser motor and fitment of new one

Supply of 3 pole C series 20 Amps MCB for compressor (ICF approved make)

Labour charges for removal of defective 3 pole C series 20 Amps MCB for compressor and fitment of new one

Supply of 3 pole C series 16 Amps MCB for heater (ICF approved make)

Labour charges for removal of defective 3 pole C series 16 Amps MCB for heater and fitment of new one

Supply of new differential pressure transformer (20-23) bar

Labour charges for removal of defective differential pressure transformer (20-23) bar and fitment of new one

Supply of side entry hood cover (Return air filter cover)

Supply of re-wounded blower motor

Supply of re-wounded condenser motor

Supply of bellows set consisting of 1 No. of supply air bellow, 2 Nos. of fresh air bellows, and 2 Nos. of return air bellow ducts as per ICF Drg. No. ICF/SK3-7-6-072 (latest) Type-I. The 121 bellow shall meet the technical requirement as per RDSO modification sheet No. RDSO/PE/MS/AC- 0079-2018 (REV-0) or RDSO Spec No. RDSO/PE/SPEC/AC/0197-2020- (Rev.0) Note: i) Test certificate from recognized laboratory for bellow material shall be submitted ii) Likely sources mentioned in the above RDSO modification sheet No. RDSO/PE/ MS/AC-0079-2018 (REV-0). shall only be considered

Supply of supply air grill powder coated

Removal of old damaged supply air grill and fitment of new one

Lifting of RMPU, Sealing of the gap between RMPU frame and trough to prevent rain water ingress inside the coach and Providing back the RMPU, as and when required by Railways. Material for sealant has to be arranged by the contractor. Contractor will be permitted to use the infrastructure available with Railways for this work

Rain water leak attention of RMPU

Modifying of old power harting connector in the RMPU without replacing the harting connector as per HQ guidelines

Painting of transition ducts