www.hi-velocity.com
© 1995-2020 Energy Saving Products Ltd.
© 1995-2020 Energy Saving Products Ltd.
*IMPORTANT: The freeze control serves the purpose
of preventing severe icing of the coil in the event of
an undercharge or low load on the coil. This piece of
equipment must be used at all times. Lack of use of
the freeze-stat will result in RPM-E related warranty
issues being voided.
A
A1
B
B1
COIL
Module RPM-E
Refrigerant Module Installation
Rough Opening Sizes
A or B
A1 or B1
RPM-E 50
11
3/4
”L X 13
1/4
”H
(298mm X 337mm)
11
3/4
”L X 9”W
(298mm X 229mm)
RPM-E-70
16
3/4
”L X 13
1/4
”H
(425mm X 337mm)
16
3/4
”L X 9”W
(425mm X 229mm)
RPM-E-100
22
3/4
”L X 13
1/4
”H
(578mm X 337mm)
22
3/4
”L X 9”W
(578mm X 229mm)
Refrigerant Modules (RPM-E)
The RPM-E series cooling module can be used with the Hi-
Velocity Fancoil, installed in many different positions. It is pre-
piped with an adjustable, heat pump ready, thermal expansion
valve and comes with a bleed port, sight glass, suction and liquid
line access ports, freeze-stat, and two L brackets for mounting.
The RPM-E comes as a complete module and must be installed
in the vertical position on the return air side of the fancoil; the
unit cannot be turned on its side and is a draw through unit
only. The module offers multi-position airflow configurations for
horizontal, highboy, or counter-flow configurations. (Fig. RPM-
01)
The TXV (Thermal Expansion Valve), sight glass, access ports,
and freeze-stat* are already installed and are accessible through
an easy to remove access hatch. The liquid and suction lines have
male solder connections at a standard width making connections
to the condenser lines quick and easy.
Fig. RPM-01 - RPM-E Cooling Module Configurations
When installing, follow the recommendations shown in
Table 01, demonstrated in Fig. 01. For example, a horizontal
application could use A to B while highboy applications could
use A to B1. Do not use a combination of A to A1 or B to B1, as
this would bypass the cooling coil completely. A1 is not to be
used for outlet airflow. The knock-outs can be removed with a
screw driver and hammer. Use caution when opening the knock-
outs, ensuring you do not damage the coil surface.
Configurations
Important: If side A1 is going to be used in your selected
configuration, the extended drain pan must be removed.
RPM-E Drain Pan Extension
The RPM-E Drain Pan Extension (DPE) is to be removed for up
flow (vertical) return air applications (avoid installing the RPM-E
in counter flow applications).
The lower knockout can now be removed, using a screwdriver
and hammer (Fig-RPM-03). Use caution when removing knockouts
ensuring you do not damage the coil inside the module.
To remove the pre-installed DPE, first remove left side access
panel of the RPM-E Module. Remove the 3 - ¼ ” screws that hold
the DPE in place, remove the DPE and replace ¼” screws into the
coil support (Fig. RPM-02). Replace the left side access panel.
-2-
-2-
Right
Wrong
A to B
B1 to A1
A to B1
B to A1
A1 to B
A to A1
A1 to B1
B to B1
B to A
B1 to A
Table RPM-01 - RPM-E Cooling Module Configurations
Fig-RPM-02 - Remove DPE
Fig-RPM-03 - Remove Knockout
*IMPORTANT: The freeze control serves the purpose
of preventing severe icing of the coil in the event of
an undercharge or low load on the coil. This piece of
equipment must be used at all times. Lack of use of
the freeze-stat will result in RPM-E related warranty
issues being voided.
A
A1
B
B1
COIL
