Thermal Solutions AMP 1000, Installation, Operation And Maintenance Manual

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a. Mixing valves can be installed at the outlet of
storage tank or at other zones or fixtures in the
system.
2. When appliances such as dishwashers or clothes
washers are used in a domestic hot water system
that require increased temperatures, two hot water
supply's can be set up as shown in Figure 24.
3. Scalding can occur at temperatures above 125 0F.
Young Children, disabled, and elderly are most at
risk of hot water scalding.
E. Water Quality
1. To minimize corrosion and scale effects, adhere to
the water quality requirements in Table 27.
a. If the water hardness is higher than 205 ppm (12
gpg), a water softener should be used.
b. Water with a hardness of less than 80 ppm (5 gpg)
can have a pH level that is corrosive.
2. Total Dissolved Solids (TDS) contribute to scale
buildup. If the TDS or combined water hardness
and TDS exceeds 450 ppm, the water needs to be
heated indirectly.
a. The TDS (in ppm) is determined by measuring the
electrical conductivity (µS/cm) of the water and
multiplying by a conversion factor (typically 0.65
for drinking water).
3. Chlorine and Chloride can be very corrosive to
stainless steel. Ensure the level of chlorine is less
than 5 ppm and the level of chloride is less than
1000 ppm.
a. The AMP is not designed for the heating of
swimming pool water.
4. Before connecting the appliance, insure the system
is free of impurities, grease, sediment, construction
dust, and anything that could be harmful to the
appliance or humans.
a. Flush the system thoroughly and repeatedly if
needed.
DANGER DANGER
HOT
BURN
• Water temperatures over 125 0F can cause
severe burns instantly or death from scalds.
• Children, disabled, and elderly are at highest
risk of scalding.
• Feel water before bathing or showering.
• For domestic hot water supply, adjust the high
limit control on the appliance or use tempering
(mixing) valves to limit the supply temperature
below 125 0F.
!
Temperature ( ° F) Time
120 More than 5 minutes
125 1-1/2 to 2 minutes
130 About 30 seconds
135 About 10 seconds
140 Less than 5 seconds
145 Less than 3 seconds
150 About 1-1/2 seconds
155 About 1 second
Table 25: Approximate Time for Scalding
XI . Hot Water Supply Boiler Piping
(continued)
Flow Rate (GPM)
AMP
Model
Hardness level,
4-12 gpg
Hardness level,
12-15 gpg
1000 99 132
1250 99 132
1500 110 147
2000 138 183
2500 214 285
3000 214 285
3500 280 372
4000 280 372
Table 26: Operating Water Flow Rates