Limitations - York ZR Series Installation Manual

5167531-YIM-J-1019

Limitations

These units must be installed in accordance with the following:
In the U.S.A.:
1. National Electrical Code, ANSI/NFPA No. 70 - latest edition
2. National Fuel Gas Code, ANSI Z223.1 - latest edition
3. Gas-Fired Central Furnace Standard, ANSI Z21.47a. -
latest edition
4. Local building codes
5. Local gas utility requirements
In Canada:
1. Canadian Electrical Code, CSA C22.1
2. Installation Codes, CSA - B149.1
3. Local plumbing and waste water codes
4. Other applicable local codes
Refer to unit application data found in this document.
After the installation is complete, you must adjust gas fired units
to obtain a temperature rise within the range specified on the
unit rating plate.
6
If components are added to a unit to meet local codes, they are
installed at the dealer's and/or customer's expense.
The size of the unit for the proposed installation must be based
on a heat loss/heat gain calculation made according to the
methods of the Air Conditioning Contractors of America
(ACCA).
This furnace is not to be used for temporary heating of buildings
or structures under construction.
The Smart Equipment™ control board used in this
product can effectively operate the cooling system down
to 0°F when this product is applied in a comfort cooling
application for people. An economizer is typically
included in this type of application. When you apply this
product for process cooling applications (such as
computer rooms or switchgear), please call the
applications department for Ducted Systems @ 1-877-
874-SERV for guidance. Additional accessories may be
needed for stable operation at temperatures below 30°F.
Johnson Controls Ducted Systems