Weil-McLain Ultra Electric Water Heater Instruction Manual Supplement page 7

PLUS Line Instruction Manual Supplement
PLUS &
2
Install boiler-to-water heater piping
Table 1
Table 2
Notes Tables 1 and 2
1. First hour ratings in Tables 1 and 2 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 Ultra 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 IWHA016A/1103
PLUS
WATER HEATERS WITH
Combined space heating/water heating applications (see Notes)
Dedicated water-heating only systems (using circulator supplied with boiler) (see Notes)
Figure 6
GAS
Pump curves for Taco circulators
-
FIRED WATER BOILERS
(continued)
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