York YK, Installation Manual

JOHNSON CONTROLS

22

Form 160.00-N6  

Issue date: 08/27/2021

Section 3 - Installation

Figure 6 - 

Unit clearances

LD12180

NOTE: 

See 

Table 1

 for unit width and depth dimensions

Location

The standard YORK MVVSD is intended for indoor 

installations only. The cabinet is NEMA 1 rated. You 

must allow for 1 in. (2.54 cm) of clearance across the 

back of the enclosure for units with top exhaust fans. 

You must allow for 18 in. (45.7 cm) of clearance across 

the back of the enclosure for front/rear exhaust fans. 

Ensure that the drive is positioned so that the cabinet 

door(s) has ample clearance, and all of the controls are 

accessible (72 in. [183 cm] minimum). There must be 

24 in. (61 cm) of clearance above for top exhaust and 

24 in. (61 cm) clearance across the back for front and 

rear exhaust. 
The temperature range for operation is 32°F to 104°F 

(0°C to 40°C), with humidity not to exceed 95%, non-

condensing. If the location is such that moisture could 

be permitted to condense on components inside the 

MVVSD, it is  necessary to add cabinet heaters to keep 

the moisture out. Failure to prevent condensation in-

side the drive cabinet could result in serious electrical 

failure which is 

not

 covered by warranty. If the appli-

cation is greater than 5000 ft (1524 m) above sea level, 

the drive must be reviewed as a special quote. For ad-

ditional details about derating the unit, contact Johnson 

Controls marketing.

Drive lifting and assembly

To move the sections use a forklift of adequate capac-

ity. For unit weights, see the unit model reference chart 

provided on 

Table 1

. Lift the enclosure from the slots 

provided in the channel base on the transformer sec-

tion. The inverter section is shipped with 4x4 posts at-

tached to the bottom. 

Verify that the forks extend entirely 

through the section. A safety strap must 

be used when handling with a forklift.

The enclosure that houses the input transformer is too 

heavy to be lifted by eyebolts through the cabinet roof. 

For this reason, the transformer cabinet is 

not

 supplied 

with lifting eyebolts.  

This enclosure must be lifted by forks 

positioned under the cabinet and base of 

the transformer.

Contact the YORK factory if you need to lift the trans-

former cabinet from above. On cabinets that are capa-

ble of being lifted from above, lifting angles and lifting 

eyebolts are provided on top of the enclosure for this 

purpose. If lifting devices are    not provided, the cabi-

net is too heavy to be lifted from above.