9
Cooling
4. Pipe sizing
Pipework runs up to a maximum of 30m (total equivalent length) are recommend between the BMOP and BMIEP units. Each instal-
lation must be evaluated for the total equivalent pipe run length, including equivalent lengths for bends, additional fittings and
vertical lifts etc. Please refer to the appropriate interconnecting pipe sizing chart (tables below) for a full selection.
Using interconnecting pipe sizing charts
The pipework sizes below are based on the nominal duty of the BMIEP and BMOP combination, as shown in the tables. Pipework
should be selected based on the total equivalent run length of the interconnecting pipework between the two units, and not just
the dimensional length. Equivalent lengths for all bends, piping components and vertical rises should be added to the basic run
lengths to achieve the total equivalent run lengths. When using the tables to determine pipe length, round up the equivalent
length and do not interpolate between values. For example, if the pipe run is between 10m and 20m, always use the 20m values.
Cellar temperature 10°C
Evaporator bracket centres
CONDENSING UNIT
EVAPORATOR
UNIT
CELLAR TEMPERATURE 10
O
C
MODEL
UNIT CONN
MODEL
10m 20m 30m
SUCTION LIQUID SUCTION LIQUID SUCTION LIQUID SUCTION LIQUID
BMOP-130-1 3/4“ 3/8“ BMIEP-448-37 5/8" 3/8" 5/8" 3/8" 3/4" 3/8"
BMOP-150-1 3/4“ 3/8“ BMIEP-448-48 5/8" 3/8" 3/4" 3/8" 3/4" 3/8"
BMOP-190-1 3/4“ 3/8“ BMIEP-448-48 5/8" 3/8" 3/4" 3/8" 3/4" 3/8"
BMOP-210-1 7/8“ 1/2“ BMIEP-448-48 5/8" 3/8" 3/4" 3/8" 7/8" 3/8"
BMOP-210-1 7/8“ 1/2“ BMIE-448-69 5/8" 3/8" 3/4" 3/8" 7/8" 3/8"
BMOP-210-1 7/8“ 1/2“ BMIEP-448-89 3/4" 3/8" 3/4" 3/8" 7/8" 1/2"
BMOP-250 -1/3 7/8“ 1/2“ BMIEP-448-89 3/4" 3/8" 3/4" 3/8" 7/8" 1/2"
BMOP-320-1/3 7/8“ 1/2“ BMIEP-448-89 3/4" 3/8" 7/8" 1/2" 1.1/8" 1/2"
BMOP-350-3 7/8“ 1/2“ BMIEP-448-89 7/8" 3/8" 7/8" 1/2" 1.1/8" 1/2"
BMOP-360-3 7/8“ 1/2“ BMIEP-448-133 7/8" 1/2" 1.1/8" 1/2" 1.1/8" 1/2"
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