Montigo R520 Installation & Maintenance Manual page 21

Section 3-3-1: Installing Wall Mounted Power Vent (EPVRW)
and Rough-in Frame (EPVRWF)
XG0771 - 040513.3
Installation
Figure 13. Frame dimensions.
Step 2: Insert the Power Vent Rough-in Kit and secure in place, see
Figure 13a.
Framing
Figure 13a. Securing the Power Vent Rough-in Kit.
Step 3: Remove the bottom collar and conduit mounting frame, see
Figure 13a. Set removed hardware aside until needed for reassembly.
Figure 13b. Installing Rough-in Kit
R520 & R620 Power Vent Indoor Gas Fireplace
14 1/2"
14 1/2"
Fasteners
Rough-in Frame
Conduit
mounting
frame
Bottom
Collar
Page 21