Installing horizontal units – WaterFurnace Envision (XL) User Manual

Page 8

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ENVISION 7-25 TONS INSTALLATION MANUAL

9

Installing Horizontal Units

Mounting Horizontal Units

Units are available with side or end discharge in left-hand or right-hand return air configurations. Horizontal units are

normally suspended from a ceiling by four 1/2 in. diameter threaded rods. The rods are usually attached to the unit corners

by the bottom panel mounting channel and the mounting grommets furnished with each unit.

CAUTION: Do not use rods smaller than 1/2 in. diameter since they may not be strong enough to support the

unit. The rods must be securely anchored to the ceiling (the units are approximately 800 lbs.).

Top View

90.5

26.24

4.13

Figure 3: Mounting Hardware

Figure 2: Mounting Rod Layout

Ball Valves

Water Loop

Flexible Duct

Collar

1/2”

Threaded Rods

(4)

P/T Plugs

Hose Kits

Insulate supply
plenum and use at
least a 90° elbow
to reduce noise

Condensate

Drain

Connection

Power

Disconnect

Low
Voltage

Isolation

Grommets

(Included)

Figure 1: Typical Horizontal Application

Layout the threaded rods per the dimensions in Figure 2. Assemble the hangers to the unit as shown in Figure 3. Securely

tighten the brackets to the unit. When attaching the hanger rods to the bracket, a double nut is recommended since

vibration could loosen a single nut. The unit should be pitched approximately 1/2 in. towards the drain in both directions, to

facilitate condensate removal.

1/2 in. Threaded Rod

(not included)

Vibration

Isolator

Washer

(not included)

Hex Nuts

(not included)

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