8
IV. Domestic Hot Water Performance and PipingA. Domestic hot water ratings for the Minuteman® II are
based two 5 minute draws with 10 minute recovery
period at 100°F average temperature rise. Refer to
Table 1 for ratings.
Figure 7: Domestic Hot Water Piping
E. Fill domestic hot water system.
1. Open all faucets to allow air to purge from heater
and piping.
2. Open domestic hot water shutoff valve (if used).
3. Open cold water inlet shutoff valve.
4. Purge air from domestic water system. Close
faucets.
5. Check system for leaks. Repair as necessary.
Table 1: Domestic Hot Water Ratings
RELIOB
LEDOM
WARDRETAW
)MPG(
PORDERUSSERP
)ISP(
07-4IIMM9.241
501-4IIMM1.361
501-5IIMM1.361
041-5IIMM3.381
B. Drain domestic water system.
1. Shut off cold water supply at main shutoff valve.
2. Open 1 or more system faucets to relieve pressure.
Open system drain valve, leaving faucets open to
relieve vacuum.
3. Disconnect exiting domestic hot water heating
system ( if applicable).
C. Connect hot water piping to ½" NPT outlet of heater.
See Figure 7.
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D. Connect cold water piping to ½" NPT inlet of heater.
See Figure 7.
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