Trane UC SERIES - Page 21

18-CD19D5-10 21
Installer’s Guide
MAIN MANUAL
SHUTOFF
VALVE
GROUND UNION JOINT
AUTOMATIC GAS VALVE
WITH MANUAL SHUTOFF
MAIN MANUAL
SHUTOFF VALVE
GROUND
UNION JOINT
DRIP
LEG
DRIP
LEG
HORIZONTAL FURNACE GAS PIPING MAY BE FROM EITHER SIDE
(Typical upflow furnace shown in horizontal)
AUTOMATIC GAS VALVE
WITH MANUAL SHUTOFF
z
l
UPFLOW MAY BE LEFT OR RIGHT HAND GAS PIPING
THE DOWNFLOW (VERTICAL) MAY BE INSTALLED LEFT OR RIGHT SIDE GAS PIPING
;
MAIN MANUAL
SHUTOFF VALVE
AUTOMATIC GAS VALVE
WITH MANUAL SHUTOFF
GROUND
UNION
JOINT
DRIP
LEG
AUTOMATIC GAS VALVE
WITH MANUAL SHUTOFF
MAIN MANUAL
SHUTOFF VALVE
GROUND
UNION
JOINT
DRIP
LEG