Chillgard 5000 Refrigerant Monitor

The MSA Chillgard 5000 Refrigerant Monitor provides the earliest level of leak detection of costly refrigerant gas leaks in mechanical equipment rooms. Sampling system with patented photoacoustic infrared (PAIR) technology detects leaks as low as 1 part per million (ppm). Intuitive, touchscreen user interface makes it easy to operate. Predictive maintenance and diagnostics keep you operational.

Stay in compliance with ASHRAE 15, the Environmental Protection Agency and local building codes
with the Chillgard 5000 Refrigerant Gas Monitor.
—ASHRAE 15 states:
Each machinery room shall contain a detector located where a refrigerant leak would concentrate.
The detector shall trigger an audible and visual alarm both inside and outside the mechanical room
and activate mechanical ventilation.
The Chillgard 5000 also assists in compliance with EN 378 and ISO 5149.
MSA refrigerant monitoring solutions ensures local and federal compliance; protect your plant and facility.
Trust the experts.


The Chillgard 5000 Leak Detector provides continuous, real-time monitoring down to 1ppm.

Key Features of the MSA Chillgard 5000 Refrigerant Monitor

Not affected by temperature and humidity swings, minimizing drift

1 ppm minimum detection level with patented PAIR technology

Worry-free operation with advanced sensor diagnostics and predictive maintenance.

Select up to 6 refrigerants to monitor out of field-selectable refrigerant library


MSA Chillgard 5000 Refrigerant Monitor Detectable Gases

Chillgard 5000 Refrigerant Monitor Technical Specifications

R11, R12, R21, R22, R23, R32, R123, R125, R134A, R143A, R152A, R218, R227, R236FA, R401A, R404A, R407A,
R407C, R407F, R410A, R422A, R422D, R424A, R426A, R427A, R438A, R448A, R449A, R452B, R455A, R507A,
R508B, R513A, R514A, R1233zd(E), R1234yf, R1234ze

MEASURING RANGE:  0 – 1000 ppm
SENSITIVITY (MIN DETECTION) 1 ppm for all refrigerant gases
ACCURACY (LINEARITY): 0–50 ppm ±1 ppm, 51–1000 ppm ±10% of reading
SENSOR RESPONSE TIME: 90% of gas reading <70 sec
COMMUNICATION OUTPUTS: 4–20 mA sourcing, 250 Ohm load; 0 – 10 V , 2 K Ohm minimum load; RS485 Modbus RTU; RS-485 BACnet MS/TP

Chillgard 5000 Sample Tubing Specifications

Polyurethane Tubing:

Metal Tubing:

Sample Line Monitoring Distance:

0.25” OD (0.635 cm) x 0.1875” (0.48 cm) or 0.125” ID (0.3175 cm)

0.25” OD (0.635)

Up to 121 m (400 ft) for optimum performance, will support up to 381 m (1250 ft)

Chillgard 5000 Remote Display


The Chillgard 5000 Remote Display provides gas monitor information before room entry where potentially hazardous gas levels may exist. This unit is easily installed adjacent to entry ways or walls outside of the monitored area.

Workers can easily be alerted by the audible alarm and read the monitor status to know the alarm conditions inside the room prior to entry. The Remote Display provides an additional level of hazardous gas detection and communication.

Used with Chillgard 5000 Refrigerant Gas Monitor
• Connect up to four remote displays in series
• Water and corrosion-resistant enclosure
• Easy to read: 7” (178 mm) touch display
• 70 dB audible alarm
• 24V or 110/220V input power models
• Strobe as an optional accessory

Download MSA Chillgard 5000 Brochure PDF