Daikin IM 986-2 VHC User Manual

Page 26 of 48 / IM 986-2
Secondary Unit
in Adjoining
Room
6" Stubs on
Master Unit
Risers for
Secondary Unit
Stud Wall
Separating
Rooms
Common
Risers
Master Unit
2. Master units are offered in two-pipe systems
with either right-hand or left-hand connections.
Secondary units are offered to accommodate
internal connections to any of these riser systems or
locations.
3. The riser location (right or left) is determined by
facing the return air grille panel. The risers are
located on either the right or left of the unit. This
denes the riser location. See Unit Congurations
on page 12.
4. The riser block-off plates are located in the base of
the secondary unit. Block-offs must be installed on
the secondary unit before putting it into position.
Twin Units Installation
Twin opposite hand units share a common riser system;
i.e., supply, return, and drain riser. This is commonly
called a “master/secondary” arrangement. The master
unit is shipped with the risers attached. These special
risers have stub-outs for both the master unit and the
secondary unit which must be eld connected and the
following procedures must be followed for all twin unit
installations.
1. Secondary units ship without risers and share
common risers with the master unit. Knockout holes
on the cabinet are provided for the 6" stub outs to
make piping connections to the coil supply and
return and the condensate drain.
Figure 43: Twin Unit Arrangement (Side by Side)

Daikin IM 986-2 VHC Specifications

General

Brand	Daikin
Model	IM 986-2 VHC
Category	Heat Pump
Language	English