2
746-819-B0-001, Rev A (06/2017)
Installing the Transformer
Alpha recommends installing the transformer in the space to the left of the power supply. If space is limited, place the
transformer on it's right side on the power supply shelf (Fig. 1). If this space is not available, follow the instructions below
for installing the transformer on top of the power supply.
Fig. 2, Mounting Clips
Alternate Method for Installing the Transformer
1. Secure the transformer in position using two mounting clips (Fig. 2). By default, the mounting clips will come
installed in the XM3 configuration (Fig. 3). For mounting on an XM2, remove the mounting clips from their default
location and orient them as shown in Fig. 4, with the longer side of the clip facing downward, adjusting the width
of the clips to fit the body of the XM2. Secure the clips to the base of the transformer using two #6-32 3/8" screws.
Apply 9 –13 in-lbs (1 – 1.5Nm) of torque.
2. With the front door of the PWE open, install the XMP-8D on top of the power supply. For an XM3, install the
transformer above the inverter module, allowing the mounting clips to slot into the vents on the top of the power
supply (Fig. 5). In cases where the PWE contains an XM2, there will be less clearance above the power supply.
Where possible, remove the PWE roof to install the transformer on the XM2. If the roof of the PWE cannot be
removed, begin with the transformer positioned to the left of the power supply. With the XMP-8D inside the PWE,
slowly lift it up the left side of the XM2, then over to the right until it is directly above the inverter module. Set the
XMP-8D down on top of the XM2 so that the downward facing mounting clips align with the left and right sides of
the inverter module (Fig. 7).
Fig. 1, XMP-8D Recommended Installation Location
Alpha offers a PWE Two-Transformer Module Kit (
P/N: 746-819-20-001
) for the PWE-6. Follow
the instructions given for single transformer installation, using the Y-Harness Wire Kit (
P/N: 876-
230-20-001
) to connect the two transformer units to the power supply.
NOTICE
:
