Detroit Radiant Products Company HLV Series - Manual (Page 21)

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HLV Series 3.0 Installation • Vacuum Pump Assembly and Mounting
Vacuum Pump Assembly and Mounting
Figure 3.2 • Isolation Boot Placement
Prior to mounting the vacuum pump, ensure the building structure and support brackets have adequate
load characteristics to support the pump. Refer to Chart 3.1 below.
NOTE: The average sound level of PB Series vacuum pumps is between 60 and 63 DBA. If the
application requires a lower decibel level, relocation of the pump or a sound-deadening enclosure may
be necessary. Contact factory.
Vacuum Pump
Model
Vacuum Pump
Weight
NC-7 20 lbs.
PB-8 60 lbs.
PB-9 67 lbs.
PB-10A 73 lbs.
Chart 3.1 • Vacuum Pump Weight
Following an engineered design layout:
1 Install vacuum pump as shown on plans. Ensure the pump is properly aligned with the system.
Allow an 8-in. to 12-in. space between the primary damper and the vacuum pump inlet adapter for
the isolation boot.
2 Using self-tapping sheet metal screws, mount the inlet and outlet adapters to the vacuum pump and
seal the joints with a high temperature sealant. NOTE: The NC-7 pump does not require an inlet
adapter or isolation boots).
3 Install both isolation boots and secure with the hose clamps provided (Figure 3.2).
WARNING
!
Improper suspension of the heating system may result in collapse and being crushed.
Always suspend from a permanent part of the building structure that can evenly support
the total force and weight of the heater.
Primary Damper
Isolation Boot
Isolation Boot
Vacuum Pump
Inlet Adapter
Flue Vent
Outlet Adapter