Slant/Fin Oil Hot Water - Manual (Page 7)

7
EQUIPMENT INCLUDED
LDWO SERIES –– Hot Water Models
• Pre-assembled heat exchangers with built-in air separators
• Insulated baked enamel jacket.
• Flue collector.
• Draft regulator.
• Flame retention oil burner with nozzle and CAD cell.
• Primary burner control.
• Temperature limit.
• Flue brush.
• Module temperature and pressure gauge.
• System pressure and temperature gauge.
(unmounted-1 per system).
• Pressure relief valve (unmounted-1 per module).
• Control header (unmounted-1 per system, up to 8 modules).
OPTIONAL EQUIPMENT
• Headers.
• Control System.
Figure 10. Oil Caravan—optional header assembly for all models LDWO and LWDF hot water Caravan systems.
*Building piping must be rigidly secured so it cannot
move where connected to headers.
NOTE:
Shown reverse return (Preferred). For direct return,
header assembly piping connections may be made at
the same end of the boiler bank, not as shown.
Some governing agencies do not allow compression
type couplings. Consult your local code requirements.
3'' RETURN HEADER
WITH 1 1 / 2 '' STUBS
(3 MODULE)
* 3'' BUILDING
PIPING
(BY OTHERS)
1 1 / 2 '' X 34'' SQUARE NIPPLE
1 1 / 2 '' X 30'' NIPPLE
CAST END CAP
WITH 3 / 4 '' TAPPING.
SUPPLY OR RETURN.
FOR USE WITH LWCO.
3'' SUPPLY HEADER
WITH 1 1 / 2 '' STUBS
(3 MODULE)
1 1 / 2 '' X 4'' NIPPLE
3'' PIPE X 20''
(BY OTHERS)
1 1 / 2 '' UNION
1 1 / 2 '' X 1 1 / 2 '' X 1 1 / 2 '' TEE
1 1 / 2 '' X 3 / 4 '' BUSHING
3 / 4 '' DRAIN VALVE
1 1 / 2 '' X CLOSE NIPPLE
1 1 / 2 '' ELBOW
3'' SUPPLY HEADER
WITH 1 1 / 2 '' STUBS
(2 MODULE)
* 3'' BUILDIING PIPE
CONNECTION
1 / 2 '' PRESSURE
TEMPERATURE
GAUGE
1 / 2 '' WELLS
3'' FLEX JOINT
(SEE DETAIL "A")
1 1 / 2 '' ELBOW
1 1 / 2 '' X 15'' NIPPLE
CAST END CAP
3'' RETURN HEADER
WITH 1 1 / 2 '' STUBS
(2 MODULE)
3'' FLEX JOINTS
(SEE DETAIL "A")
1 1 / 2 '' X 8'' SQUARE NIPPLE
1 1 / 2 '' FLEX JOINT
(SEE DETAIL "A")
1 1 / 2 '' X 4'' NIPPLE
CONTROL HEADER
3'' x 1 / 2 '' x 1 / 2 '' x 1 / 2 ''
150 psi 275˚ F
Pressure/Temp Rating for flex joint fittings