User Guide
Table Of Contents
- Section 1. Introduction
- 1.1. How to Use This Manual
- 1.2. Warning Statements
- 1.3. Caution Statements
- 1.4. Hazard Symbols Located on the Monitor
- 1.5. Safety Precautions
- 1.5.1. AC Power Supply
- 1.5.2. Protective Grounding
- 1.5.3. Explosive Atmosphere
- 1.5.4. Proper Exhaust Venting
- 1.5.5. Accessing the Interior of the Monitor
- 1.5.6. Misuse and Modifications to the Monitor
- 1.5.7. In Case of Malfunction
- 1.5.8. Fusing
- 1.5.9. Installation Category
- 1.5.10. Altitude Limit
- 1.5.11. Cleaning
- 1.6. Functional Overview
- 1.7. Specifications
- Section 2. Installation
- Section 3. Operation
- Section 4. Maintenance
- 4.1. Warnings and Cautions
- 4.2. Charcoal Filter (Halogen Gas Monitor Only)
- 4.3. Hydrophobic Filters
- 4.4. Servicing Air Lines and Termination Filters
- 4.5. End-of-Line Water Stop (Optional)
- 4.6. Water Trap (Optional)
- 4.7. Fuses
- 4.8. Clock Battery
- 4.9. Sample Pump
- 4.10. Replacement Parts and Optional Accessories
- 4.11. Service Centers
- Appendix A. Data Tables
Single Zone Gas Monitor
4 P/N: 3015-4256 Rev 10
Figure 1-1. Aerial View of Example Single Zone Leak Monitor Placement in a Mechanical Room
1.7. Specifications
Category HGM-SZ Specifications
Product Type
Single-zone infrared monitoring system for low level continuous monitoring of CFC, HCFC
and HFC refrigerant gasses used in most commercial refrigeration systems. System design
supports compliance to the refrigerant monitoring requirements of ANSI/BSR ASHRAE 15-
2007 and ASHRAE Safety Code 34-2007.
Gas Library:
CFC
HFP, R-11, R-113, R-114, R-12, R-502
HFC
R-125, R-134a, R-236FA, R-245Fa, R-404a (HP62), R-407a, R-407c (AC9000), R-410a
(AZ20), R-422a, R-422d, R-427a, R-507 (AZ50), R-508b (SUVA95)
HCFC
R-123, R-124, R-21, R-22, R-227, R-23, R-401a (MP39), R-402a (HP80), R-402b (HP81),
R-408a, R-409a, R-500, R-503
HALON
H1211, H1301, H2402
Other
FA188, FC72, HFO1234YF, N1230, R-420a, R-424a, R-426a, R-427a, R-438a
Sensitivity
All gasses 1 ppm
Measuring
Range
All gasses 0 to 10,000 ppm
Accuracy
±1 ppm ±10% of reading from 0-1000 ppm
(R11, R22, R113: ±10 ppm ±15% of reading 0-1000 ppm)
Response Time
105 seconds maximum (dependent on sample line length)