18
Technical data – Oil unit
MODEL
BURNER
TYPE
BTU
INPUT
NOZZLE
FLOW
HEAD
STATIC
PLATE
PRESSURE
AT THE PUMP
H.P. FAN
MOTOR
TUBULATOR
ADJUSTMENT
AIR
ADJUSTMENT EFFICIENCY
UH–
CADDY
BECKETT
AFG
90,000
0.55 X 60
0
W
(DELAVAN)
0.55 GAL US/H
(2.08 L/H)
L2
YES
140 PSI
(965 kPa)
1/3
---
0/2
85%
UH–
CADDY
RIELLO 40
F3
91,000
0.50 X 70
0
W
(DELAVAN)
0.60 GAL US/H
(2.27 L/H)
---
---
150 PSI
(1035 kPa)
1/3
1
2.5
87%
BLOCKED VENT SWITCH
A Blocked Vent Switch is mandatory for installation with an oil-fired
appliance that normally operates with its vent system under a negative
pressure. This device is intended to detect a blocked vent system,
responds to hot flue gases backing up through its heat transfer tube,
and can be wired to shut off the oil burner. It requires manual resetting.