IDEAL HP180IND, Installation & Servicing

Page: 11 / 36

Page 11
INSTALLATION
Ideal HP/Heat Pump Selection Guide
The table above can be used to match heat pumps to heat pump cylinders.
To use, first obtain the maximum flow rate from the heat pump manufacture’s
instructions, match this to the flow rates in section 1 and follow this flow rate’s column
down through the other sections.
Section 2 shows the velocity in the pipe work of different diameters at this flow rate. A
maximum flow velocity of 1m/s has been chosen to limit flow noise. Use this section to
choose the correct pipe diameter.
Ideal HP/Heat Pump Selection Guide
1 - Flow rates in various units for comparison with heat pump manufacturers data
m
3
/h 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25
l/min 8.33 12.50 16.67 20.83 25.00 29.17 33.33 37.50 41.67 45.83 50.00 54.17 58.33 62.50 66.67 70.83
l/sec or kg/s 0.14 0.21 0.28 0.35 0.42 0.49 0.56 0.63 0.69 0.76 0.83 0.90 0.97 1.04 1.11 1.18
2 - Velocity in pipe (limited to 1 m/s maximum) for pipe sizing
m/s in 22mm 0.37 0.55 0.73 0.91 - - - - - - - - - - - -
m/s in 28mm 0.23 0.34 0.45 0.56 0.68 0.79 0.90 - - - - - - - - -
m/s in 35mm 0.14 0.22 0.29 0.36 0.43 0.51 0.58 0.65 0.72 0.79 0.87 0.94 - - - -
m/s in 42mm 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85
3 - Operating power of heat exchanger suitable for cylinder based on a 5 degree temperature difference
kW @ 5K dt 3-4 4-6 5.5-8 7-10 8-12 10-14 11-16 13-18 14-20 16-22 17-24 18-26 20-28 21-30 23-32 24-34
180HP - - - - - - - - - -
180HP Slim - - - - - - - - - -
210HP - - - - - - - - -
210HP Slim - - - - - - - - -
250HP - - - - - - - - -
300HP - - - - -
4 - Pressure loss (bar) for each flow rate above in the available coil combinations
180HP 0.010 0.027 0.053 0.092 0.143 0.207 0.286 0.381 0.491 0.618 0.763 0.927 1.109 1.310 1.532 1.774
180HP Slim 0.004 0.010 0.018 0.030 0.044 0.062 0.083 0.108 0.136 0.167 0.202 0.241 0.283 0.329 0.379 0.432
210HP 0.017 0.040 0.074 0.118 0.173 0.239 0.316 0.405 0.505 0.617 0.741 0.877 1.025 1.184 1.356 1.540
210HP Slim 0.004 0.010 0.018 0.030 0.044 0.062 0.083 0.108 0.136 0.167 0.202 0.241 0.283 0.329 0.379 0.432
250HP 0.006 0.015 0.028 0.045 0.067 0.093 0.124 0.159 0.200 0.245 0.295 0.350 0.410 0.475 0.545 0.620
300HP 0.008 0.019 0.036 0.058 0.086 0.120 0.160 0.206 0.259 0.318 0.384 0.457 0.536 0.623 0.716 0.816
INSTALLATION
Section 3 shows the maximum operating power
of the coils in the cylinder. Shaded squares show
the range of operating powers suitable for a
cylinder in either of its set ups.
Section 4 shows the pressure loss across the
coils at this flow rate for all cylinders in both
configurations.