ii
SM-18006
Product Inspection upon Arrival
1. Upon receiving this product, inspect it for any damage incurred in transit. Claims for damage, either
apparent or concealed, should be led immediately with the shipping company.
2. Check the model number, electrical characteristics (power supply, voltage, and frequency rating), and
any accessories to determine if they agree with the purchase order.
3. The standard use for this unit is explained in these instructions. Use of this equipment for purposes
other than what it designed for is not recommended.
4. Please contact your local agent or contractor as any issues involving installation, performance, or
maintenance arise. Liability does not cover defects originating from unauthorized modications
performed by a customer without the written consent of Johnson Controls, Inc. Performing any
mechanical alterations on this product without the consent of the manufacturer will render your warranty
null and void.
Interchangeability between Generation 1 and 2 Change-Over Boxes
● Generation 2 change-over box is compatible with the generation 2 water source unit.
Determining Propriety of Connection between
Change-Over Box and VRF Water Source Unit (Heat Recovery)
Model of Change-Over Box
and VRF Water Source Unit
Change-Over Box
Generation 1 Generation 2
Single Branch Type Multiple Branch Type Single Branch Type Multiple Branch Type
COBS048B21S
COBS096B21S
-
COBS048B22S
COBS096B22S
COB04M132B22S
COB08M264B22S
COB12M264B22S
VRF Water Source Unit
(Heat Recovery)
Generation 2 (This Manual)
208/230V Type
(H,Y)VWHR072B32S
(H,Y)VWHR096B32S
(H,Y)VWHR120B32S
(H,Y)VWHR144B32S
(H,Y)VWHR168B32S
(H,Y)VWHR192B32S
(H,Y)VWHR216B32S
Not Available Available
460V Type
(H,Y)VWHR072B42S
(H,Y)VWHR096B42S
(H,Y)VWHR120B42S
(H,Y)VWHR144B42S
(H,Y)VWHR168B42S
(H,Y)VWHR192B42S
(H,Y)VWHR216B42S