The Honeywell C7027A1080 is supplied with a 136733 heat block and a 390427B mounting bushing. It combines the standard-temperature C7027A UV detector and 2.44 m (8 ft) leads with accessories for thermal isolation and connection to a ⅜-inch sight pipe.
Product Specification
- Operating ambient temperature: −18 to +102 °C.
- Two color-coded 2.44 m (8 ft) leads; 18 AWG, NEC Class 1, plastic insulation rated for 105 °C.
- Integral ½–14 NPSM internally threaded collar for a ½-inch sight pipe.
- ½-inch flexible-conduit clamp.
- Maximum sealed pressure: 5 psi (34.5 kPa) when correctly installed.
- Sealed UV sensing tube; replacement is by complete detector assembly.
Included Mounting Accessories
The 136733 laminated-plastic heat block isolates the detector from sight-pipe temperatures up to 130 °C. It has ½–14 NPSM external and internal threads. The 390427B bushing adapts the mounting to a ⅜-inch sight pipe. The detector itself retains its +102 °C maximum ambient rating.
Flame Safeguard Compatibility
Use with R7849A or R7849B UV amplifiers in compatible Honeywell 7800 control systems. Honeywell also documents RA890G controls and R7249A, R7290A and R7749B amplifier combinations.
Operation is intermittent: the burner must shut down at least once every 24 hours. The detector has no dynamic self-checking shutter. R7849B checks the amplifier circuit; flame-failure response time is determined by the selected amplifier and relay module.
Compare Configurations
The C7027A1023 is the standard configuration without the included heat block and bushing supplied with C7027A1080. View C7027A1023 specifications.
Compare all seven C7027A models by lead length, temperature range and mounting configuration.
