Weil-McLain PLUS-E017-A/1206 manual For boilers other than Ultra Gas, see page 67 for ratings

Manual • Installation • Start-Up • Usage • Maintenance • Parts

The following ratings are for Ultra Gas boilers only, with supply water temperature at 190°F.	gas
For boilers other than Ultra Gas, see page 67 for ratings.

Table 3			Combined space heating/water
			heating (see Notes)
Boiler	PLUS	1st Hour		Boiler		Head losses, Feet w.c.				DHW
	Model	rating, GPH		piping						Pump
		115°F	140°F	GPM	Rec.	Boiler	Heater	Piping	TOTAL
					size
	40	160	124
	60	168	132
Ultra-	80	176	140	6.6	1"	5.8	1.0	2.4	9.2	007
80	100	190	155
	110	210	175
	119	230	190
	40	203	141
	60	211	162
Ultra-	80	219	170	6.4	1"	5.9	1.0	2.3	9.3	007
105	100	230	185
	110	250	205
	119	270	225
	40	238	153	8.7	1"	5.7	1.0	3.9	10.6	0010
	60	294	190	9.6	1¼"	7.1	1.0	2.3	10.5
Ultra-	80	302	230
155	100	315	245	10.8	1¼"	9.0	1.0	2.8	12.8	0012
	110	335	265
	119	355	285
	40	248	160	12.0	1¼"	8.2	1.0	3.4	12.6	0012
	60	330	196
Ultra-	80	411	305
230	100	440	335	13.5	1¼"	10.0	1.0	4.2	15.2	0014
	110	460	355
	119	480	375
	40	254	164	15.0	1¼"	6.0	1.0	5.1	12.1	0012
	60	351	208	18.6	1½"	8.5	1.0	3.3	12.8	0011
Ultra-	80	579	373
310	100	440	335	22.0	1½"	11.2	1.0	4.5	16.6	0013
	110	460	355
	119	480	375

Table 4			Dedicated water-heating, using circulator
			supplied with boiler (see Notes)
Boiler	PLUS	1st Hour		Boiler		Head losses, Feet w.c.				Circ.
	Model	rating, GPH		piping
		115°F	140°F	GPM	Rec.	Boiler	Heater	Piping	TOTAL
					size
	40	160	124
	60	168	132
Ultra-	80	176	140	6.6	1"	5.8	1.0	2.4	9.2	007
80	100	190	155
	110	210	175
	119	230	190
	40	203	141
	60	211	162
Ultra-	80	219	170	6.4	1"	5.9	1.0	2.3	9.2	007
105	100	230	185
	110	250	205
	119	270	225
	40	250	160
	60	295	220
Ultra-	80	305	230	12.1	1¼”	11.4	1.0	4.5	16.9	0014
155	100	315	245
	110	335	265
	119	355	285
	40	240	170
	60	335	220
Ultra-	80	430	325	13.5	1¼”	10.0	1.0	5.2	16.2	0014
230	100	440	335
	110	460	355
	119	480	375
	40	240	170
	60	335	220
Ultra-	80	580	410	18.3	1½”	8.3	1.0	4.2	13.5	0014
310	100	590	435
	110	610	465
	119	630	485

Notes Tables 3 and 4

1.First hour ratings in Tables 3 and 4 are based on:

•115°F or 140°F domestic outlet water supply temperature from water heater.

•50°F domestic water inlet temperature.

•190°F boiler water temperature leaving Gas boiler.

•Circulator and pipe sizes as given in the Tables.

2.If the net Btu/hr rating of the boiler is close to the space heating load (for combined systems)

— or if there is an unusually large demand for domestic water — increased boiler capacity may be required.

Part Number PLUS-E017-A/1206

Figure 16 Pump curves for Taco circulators

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