York MILLENNIUM Y14 User Manual

CONTENTSDESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CV UNITS W/O ECONOMIZER . . . . . . . . . . . . . . . . 3UNITS W/O

530.70-N1.11Y10 Unitary Products GroupCV UNITS WITH ECONOMIZERThe new thermostat requires a thermostat cable with a mini-mum of 10 conductors that run

530.70-N1.11YUnitary Products Group 11NOTE: Steps 6 through 8 are for optional heat only.5. Disconnect wire 526/R from the 30FU location.6. Disconnect

530.70-N1.11Y12 Unitary Products Group FIGURE 9 : CONSTANT VOLUME UNIT WITH ECONOMIZER WIRING DIAGRAM

530.70-N1.11YUnitary Products Group 13 FIGURE 10 : CONSTANT VOLUME UNIT WITH ECONOMIZER CONNECTION DIAGRAM

530.70-N1.11Y14 Unitary Products Group FIGURE 11 : CV UNIT WITH GAS HEAT AND ECONOMIZER WIRING DIAGRAM

530.70-N1.11YUnitary Products Group 15 FIGURE 12 : UNIT WITH ECONOMIZER AND ELECTRIC HEAT WIRING DIAGRAM

Subject to change without notice. Printed in U.S.A.Copyright © by YORK Unitary Products 1999. All rights reserved. Supersedes: Nothing 530.70-N1.11Y (

530.70-N1.11Y2 Unitary Products GroupDESCRIPTIONThe installation of this kit (2RT04701A) replaces the W7400module and will obsolete the T7400 thermost

530.70-N1.11YUnitary Products Group 3The new thermostat requires a thermostat cable with a mini-mum of 10 conductors that run from the sub-base to the

530.70-N1.11Y4 Unitary Products Group5. Disconnect wire 526/R from the 30FU location.NOTE: This wire will be used with the new controls.6. Disconnect

530.70-N1.11YUnitary Products Group 531. Attach wire 816/R from MR-7 to 8T-2.32. Attach wire 201/R from 8T-1 to 30FU.33. Attach wire 204/BR to the new

530.70-N1.11Y6 Unitary Products Group FIGURE 5 : CONSTANT VOLUME UNIT WITHOUT A ECONOMIZER WIRING DIAGRAM

530.70-N1.11YUnitary Products Group 7 FIGURE 6 : CONSTANT VOLUME UNIT W/O ECONOMIZER WIRING DIAGRAM

530.70-N1.11Y8 Unitary Products Group FIGURE 7 : COOLING UNIT WITH ELECTRIC HEAT DIAGRAM AND WITHOUT ECONOMIZER

530.70-N1.11YUnitary Products Group 9 FIGURE 8 : CV UNIT WITH GAS HEAT AND WITHOUT ECONOMIZER WIRING DIAGRAM