Slant/Fin LDWO SERIES manual One per module unless otherwise noted, Ratings, Optional Equipment

® Modular Boiler Submittal Data

LDWO SERIES—Oil-fired/Hot Water

A Caravan modular boiler system consists of two or more compact cast-iron boilers that offer significant advantages in terms of installed cost, efficiency and reliability. Caravan systems are based on step-firing just enough modules to meet hot water or space heating demands. LDWO systems are available in 602,000 to multi-million Btuh gross input.

For additional information, see Caravan Engineering Manual, pub. C-30 and Caravan oil application guide, pub. CG-10-HWO.

Standard Equipment
One per module unless otherwise noted
Pre-assembled cast-iron heat exchanger
with built-in air separators and insulated jacket
Swing-out/removable burner door
Flame retention oil burner, with nozzle;
cadmium sulfide flame detector
Hi-limit control, auto reset
Primary burner control
System pressure and temperature gauge	Control header (unmounted,
(unmounted)	one per system)
Module pressure and temperature gauge	Flue brush
Module pressure relief valve (ASME)	Module drain cock
(unmounted) Specify 30, 50 or 100 psi.	(unmounted)
Draft regulator (unmounted)

Ratings

Optional Equipment

Hot water supply and return header assemblies

Control panel with automatic lead lag

Oil Caravan ratings/hot water models — LDWO Series

		I=B=R	I=B=R Ratings					I=B=R				Recom-
		Firing
				(MBH)
		Rate					EDR	Net	Boiler	Water		mended
	No. of	#2 Oil			Gross		Water †	Output‡	Horse-	Content	Ship	Header
Model No.	Modules	GPH*	Input		Output		(Sq. Ft.)	(MBH)	power	(gal.)	Wt.	Size §
LDWO-600-2-5	2	4.30	602		500	2900		435	14.9	31.0	1570	2"
LDWO-750-2-6	2	5.20	728		596	3453		518	17.8	35.6	1790	2"
LDWO-850-2-7	2	6.00	840		684	3967		595	20.4	45.2	2000	3"
LDWO-900-3-5	3	6.40	896		750	4347		652	22.4	46.5	2355	3"
LDWO-1100-3-6	3	7.80	1092		894	5180		777	26.7	53.4	2685	3"
LDWO-1300-3-7	3	9.00	1260		1026	5947		892	30.6	67.8	3000	3"
LDWO-1700-4-7	4	12.00	1680		1368	7933		1190	40.9	90.4	4000	3"
LDWO-2100-5-7	5	15.00	2100		1710	9913		1487	51.1	113.0	5000	3"
LDWO-2500-6-7	6	18.00	2520		2052	11893		1784	61.3	135.6	6000	3"
LDWO-2900-7-7	7	21.00	2940		2394	13880		2082	71.5	158.2	7000	4"
LDWO-3400-8-7	8	24.00	3360		2736	15860		2379	81.7	180.8	8000	4"

* Light oil, 140,000 Btuh per gallon.

† Based on 150 Btuh per square foot E.D.R. at 170°F average water temperature.

‡Net ratings are based on a piping and pick-up allowance of 1.15. Slant/Fin should be consulted before selecting a boiler

for installation having unusual piping and pick-up requirements. § Modules in excess of 8 are piped in parallel to first eight.

NOTE: For higher capacities, specify any combination of standard Caravan models shown.