Maintenance; Table 9-1 Replaceable Parts For 7872 Gas Sampling Panel; Figure 9-2 7872 Gas Sampling Panel Exploded View - Honeywell 7866 Operation And Maintenance Manual

Appendix A 7872 Gas Sampling Panel
5.5
(139.7 mm)
4
(101.6 mm)
3
(76.2)
A,B
C
Partial Side View
9.4

Maintenance

Table 9-1 lists the replaceable parts for the Gas Sampling Panel. Refer to the exploded view in Figure 9-2.

Table 9-1 Replaceable Parts for 7872 Gas Sampling Panel

Filter Cartridge for Sample Regulator
Ref Air Flowmeter
Co /Air Flowmeter
2
3-way Selector Valve
Ref Air Regulator (includes Filter cartridge)
Sample Regulator (includes filter cartridge)
Gas Inlet and Vent Bulkhead Union Connectors
Bypass Flowmeter
Bypass Valve (5 psig)
H Flowmeter
2
78 7866 Triple Range Digital H
"B" "C" "A"
BYPASS VALVE
CO /AIR FLOW
2
B
H FLOW
2

Figure 9-2 7872 Gas Sampling Panel Exploded View

Description
and CO Analyzer/Indicator - Operation and Maintenance
2 2
SAMPLE VENT
BYPASS VENT
BYPASS FLOW
REF AIR FLOW
A
REF AIR REGULATOR
REF
AIR IN
A
ZERO GAS IN
SPAN GAS IN
B
SAMPLE
REGULATOR
SAMPLE
GAS IN
51500286-501
31098038
31098038
31072929
51451417-501
51500283-501
31076870
31072935
31072926
31072925
Section "A-A"
Section "B-B"
Part No.
9/06