SFY27 COBH HVAC and Chiller Maintenance and Repair

Central Ohio Behavioral Healthcare (COBH) is comparing rates charged by contractors on MAC038 to perform preventative maintenance and repair work on HVAC related services. Contractor MUST be authorized to perform maintenance and services on Metasys equipment/system. All work will be coordinated with our maintenance department as to the hourly requirements for for each job requested/scheduled. Preventative and repair work needed (but not limited to): Metasys System Requirements

• Contractor shall demonstrate current capability to service, modify, and program the Metasys.
• Contractor (or their subcontractor) must:

• Have current training and demonstrated experience performing Metasys programming and system modifications
• Possess required proprietary tools, software, and licensing to upload/download controller programming
• Be capable of integrating new equipment and modifying control logic

If subcontracting is utilized:

• Subcontractor must be identified at bid and meet all requirements above
• All Metasys programming work shall be performed by the qualified subcontractor

Use of Owner-provided credentials in lieu of proper access or tools is prohibited. Below are the equipement needing Preventative Maintenance (repair work when needed would be for the same equipment, however, will be based on an "as needed" basis): Chilled Water Pumps

• Chilled water - Grease motor fittings on a semi-annual basis:
  • Six pumps in COBH
    • Manufacturer: Baldor (qty. 6)
    • Model # CEN2539T (qty. 6)
• • Three pumps in Moritz
    • Manufacturer: Armstrong (qty. 3)
    • Model # 4030 (qty. 3)

Roof Exhaust Fans

• 24 fans in COBH
  • Manufacturer: Greenheck (qty. 21)
  • Model # C-099-A-A-1-19-A (qty. 21)
  • Kitchen Exhaust Fans - Manufacturer: Captive (qty. 3)
  • Kitchen Exhaust Fans - Model # Du200FA (qty. 3)

• Four fans in Moritz
  • Manufacturer: Cook (qty. 4)
  • Model # 100 SRSH 100SRSH-B
  • Model # 101 ACE 101C17D
  • Model # 120 ACE 120C3B
  • Model # 135 ACE 135C5B

All 28 Roof-top fans (COBH & Moritz) - Preventative maintenance including but not limited to:

• Quarterly:
  • Check/clean fan assembly
  • Lube fan bearings
  • Lube motor bearings
  • Check belts & sheaves - adjust as applicable
  • Tighten all nuts/bolts/mounting hardware
  • Check motor mounts and vibration pads
  • Check motor volts/amps
  • Inspect and tighten all electrical connections
  • Check fan operation
  • Check structural integrity of assembly

• Semi-Annually - All quarterly maintenance as stated in addition to:
  • Check blade pitch operation where applicable
  • Check rotary union where applicable
  • Inspect/lube blade links where applicable
  • Inspect/lube spherical bearing where applicable

Three Roof top kitchen exhaust fans (COBH only):

• Annually:
  • Inspect bearings for wear and deterioration. Replace if necessary.
  • Inspect / replace worn belts.
  • Inspect / tighten bolts and set screws.
  • Inspect motor for cleanliness, clean exterior surfaces only.

BAS System - Preventative Maintenance including but not limited to:

• Annually - Each Spring:
  • Physically inspect all field panels and controllers for damage, excessive dirt or moisture and clean/vacuum as necessary.
  • Verify proper voltage at all control transformers.
  • Inspect all connections, wire raceways in panels and wire arrangements.
  • Remove any abandoned devices and wiring and update panel diagrams as may be necessary to reflect current arrangements and configurations.
  • Verify condition of local battery / UPS that may be connected to the panel power source.
  • Confirmation of Sequences: Review the operation of BAS controlled equipment / systems and confirm that the functionality corresponds with the As-Built Sequences of Operation. When equipment / systems do not operate as described in the sequences, review the associated programming, sensors, wiring, etc. and determine the cause.

Chillers (Daikin and Carrier 30RBF19064-LNW6K): Spring Maintenance (March/April) System Performance

• Perform full Service Test using manufacturer controls
  • Record entering and leaving water temperatures
  • Record suction and discharge pressures
  • Record ambient air temperature
• Verify unit operates within manufacturer parameters

Refrigerant System

• Measure and document refrigerant pressures
• Inspect refrigerant filter driers and document pressure drop
• Inspect refrigerant circuit for visible oil or leak indicators

Electrical System

• Inspect contactors and relays for pitting, overheating, and wear
• Torque-check accessible electrical connections
• Document components requiring replacement

Condenser Fan Assemblies

• Verify all fans are operational and stage properly
• Inspect fan blades for damage and secure mounting

Controls & Safeties

• Verify operation of high-pressure cutout
• Verify operation of low-pressure cutout
• Verify operation of flow switch
• Review alarm history and identify recurring faults

Fall Maintenance (October/November) System Condition

• Perform full inspection and document deficiencies

Refrigerant System

• Inspect refrigerant circuit condition
• Identify signs of leaks, corrosion, or degradation

Electrical System

• Inspect contactors, relays, and wiring
• Verify tightness of connections

Condenser Fan Assemblies

• Inspect fan blades, motors, and mounting integrity

Chilled Water (Hydronic) System

• Verify chilled water loop condition (visual/operational only)
• Inspect and clean strainers
• Verify cooler heater operation (if equipped)
• Tube cleaning

Quarterly Preventative Maintenance (May be completed in conjunction with annual services) Refrigerant Circuit

• Inspect all joints, valves, and components for leaks
• Repair minor leaks or report major issues

System Operation

• Record operating pressures and water temperatures
• Compare readings to prior visits and identify trends

Safeties and Flow Devices

• Verify high-pressure safety
• Verify low-pressure safety
• Verify flow switch

Condenser Fans

• Verify operation, staging, and rotation

Crankcase Heater

• Verify heater is functioning

Electrical Components

• Inspect contactors for wear
• Verify tightness of connections

Controls

• Review alarms and runtime data
• Document abnormal trends

Hydronic System Quarterly

• Inspect pump seals for leakage
• Verify pump operation (noise, vibration, flow)
• Lubricate bearings per manufacturer requirements

Required Documentation

• Record operating pressures and temperatures
• Document ambient conditions
• Confirm safety device testing
• List deficiencies and recommended repairs
• Submit report within 5 business days

You may schedule a walk-through to view equipment on-grounds by coordinating with our maintenance department at (614) 641-4183. We are located at 2200 West Broad Street, Columbus, OH 43223.