Allmand Brothers MH1000 IDF - Manual (Page 24)

22 22 23
Installation Instructions for Installing the
Slip-Lock Duct Connectors (PN #848974)
Heater Section – Inner Ring
1. Line up the receiver section (ring with slots) inside the heater flange and slide it in to where the small
rounded ridge (approximate center of connector ring) is just inside the outer edge of the heater flange.
This leaves 11/16” of this inner ring exposed and will allow the compartment door to close freely. Note:
Make sure that this alignment remains constant all the way around the outer edge of the flange.
2. Mark the locations of the (3) 3/16” holes and remove the receiver section from the heater flange. Using a
center punch, make a dimple in the center of each mark and drill each hole out using a 3/16” drill bit.
3. Re-install the receiver section into the heater flange and connect it (large head inside heater flange) using
a pop-rivet gun and (3) 3/16” pop-rivets.
Duct-Work Section – Outer Ring
1. Slide the end-cuff of the ducting over the larger outer ridge and stop when the cuff makes contact with the
small inner ridge (approximate center of connector ring). This leaves 1” of the outer ring exposed. Note:
Make sure that this alignment remains constant all the way around the outer ring.
2. Using a scratch awl, poke a hole through the ducting at the location of each of the (3) 3/16” holes and at-
tach the ducting (large head on outside of duct-work) to the outer ring using a pop rivet gun and (3) 3/16”
pop rivets
3. Take the 16” screw clamp (PN #848176) and install it right over the top of the (3) 3/16” rivets on the outer
ring and tighten down securely on the ducting. Note: Make sure that this alignment remains constant all
the way around the outer ring before tightening.
4. Your ductwork is now ready to be connected to the heater unit.
3/16” Pop Rivet
Head Inside Flange
(Body Out)
11/16”
1”
3/16” Pop Rivet Heads
directly under screw clamp
11/16”
1”