Installation, Operating & Maintenance Manual
11
10/25/2004
Plumbing
Water supply
The HU315 must be supplied with cold water (not softened) having the following characteristics:
Model HU315
Instant flow rate
0.3 gpm
Connection
1/4" O.D. Compression
Temperature limits
34 to 104°F
Pressure limits
15 to 116 psi
Hardness limits
<= 400 ppm CaCO3
Conductivity range
125 to 1250
µS
/cm (micromhos)
Water drain
The HU315 also requires connection to a drain. The drain water characteristics are:
Drain rate per hour
11 gph
Instant drain rate
1.3 gpm
Connection
1-1/2” nominal diameter
Typical temperature
212 F
