York ZF150 - User Manual

R-410A
ZF SERIES
6-1/2 - 12-1/2 Ton
60 Hertz
518674-YIM-C-0610
TABLE OF CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Optional Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Optional Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . . 34
Optional Hot Gas Bypass (HGBP). . . . . . . . . . . . . . . . . . . . . . 36
Standard Economizer And Power Exhaust Set Point 
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Airflow Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . 49
No Outdoor Air Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Electric Heating Sequence Of Operations. . . . . . . . . . . . . . . . 53
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 53
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . 54
Ignition Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . . . . 55
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Unit Control Board Option Setup . . . . . . . . . . . . . . . . . . . . . . . . . 61
Option Byte Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Heat Delay Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
LIST OF TABLES
1 ZF078-150 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 ZF078-150 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . 9
4 ZF078-150 Unit Physical Dimensions . . . . . . . . . . . . . . . . . . 11
5 ZF078-150 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Side Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 ZF078-150 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . 30
11 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 31
12 Gas Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . . . . . . 32
13 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
14 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 40
15 Airflow Performance - Side Duct Application . . . . . . . . . . . . . 42
16 Airflow Performance - Bottom Duct Application . . . . . . . . . . 44
17 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
18 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 46
19 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . . . . 46
20 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . . . . 48
21 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 49
22 Electric Heat Limit Setting 50” Cabinet . . . . . . . . . . . . . . . . . 53
23 Electric Heat Limit Setting 42” Cabinet . . . . . . . . . . . . . . . . . 54
24 Electric Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . 54
25 Gas Heat Limit Control Settings . . . . . . . . . . . . . . . . . . . . . . 55
26 Gas Heat Anticipator Setpoints . . . . . . . . . . . . . . . . . . . . . . . 56
27 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . . . . 58
28 Gas Heat Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
29 Unit Control Board Flash Codes . . . . . . . . . . . . . . . . . . . . . . 60
30 Heat Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
31 Ignition Control Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . 62
32 VAV Control Board Flash Codes . . . . . . . . . . . . . . . . . . . . . 62
LIST OF FIGURES
1 Unit Shipping Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Condenser Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Compressor Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Predator
®
Component Location (ZF120 Shown) . . . . . . . . . . 6
5 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 ZF078-120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9 ZF150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 ZF078-150 Unit Bottom Duct Openings . . . . . . . . . . . . . . . . 12
11 ZF078-150 Unit Electrical Entry . . . . . . . . . . . . . . . . . . . . . . 13
12 ZF078-120 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . 13
13 ZF150 Unit Side Duct Openings . . . . . . . . . . . . . . . . . . . . . . 14
14 ZF078-150 Unit Left Duct Opening . . . . . . . . . . . . . . . . . . . . 14
15 ZF078-150 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
16 ZF078-150 Transition Roof Curb . . . . . . . . . . . . . . . . . . . . . 15
17 Side Panels With Hole Plugs . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Return Downflow Plenum With Panel . . . . . . . . . . . . . . . . . . 16
19 Discharge Panel In Place . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
20 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
21 Field Wiring Disconnect - Cooling Unit With/Without 
Electric Heat and All Units With VFD Option . . . . . . . . . . . . 18
22 Field Wiring Disconnect - Cooling Unit With 
Gas Heat Without VFD Option . . . . . . . . . . . . . . . . . . . . . . . 18
23 Typical Electronic Thermostat Field Wiring . . . . . . . . . . . . . 19
24 Typical Field Wiring 24 Volt Thermostat . . . . . . . . . . . . . . . 19
25 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
26 Bottom Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
27 Enthalpy Set Point Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
28 Honeywell Economizer Control W7212 . . . . . . . . . . . . . . . . 38
29 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
30 Altitude/Temperature Correction Factors . . . . . . . . . . . . . . . 40
31 Dry Coil Delta P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
32 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
33 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
34 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
35 Basic Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . 63
36 Power On Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
37 Trip Failure Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

York ZF150 Specifications

General

Model	ZF150
Category	Fan
Airflow	15000 CFM
Power	1.5 HP
Phase	3
Type	Axial
Voltage	230V

Summary

General

Safety Considerations

Describes safety alerts, signal words, and precautions for installation and operation.

Reference

Approvals

Lists CSA certifications and installation guidelines for the unit.

Nomenclature

Installation

Installation Safety Information

Crucial safety steps and warnings before proceeding with the installation.

Preceding Installation

Steps to prepare the unit and site before commencing the main installation.

Limitations

Location

Clearances

Specifies required distances for proper unit operation and servicing.

Rigging And Handling

Details on how to safely move and lift the unit.

Ductwork

Duct Covers

Condensate Drain

Details on condensate drain installation, orientation, and piping.

Compressors

Information about the scroll compressor and R-410A refrigerant.

Filters

Power And Control Wiring

Thermostat Wiring

Optional Electric Heat

Optional Gas Heat

Gas Connection

LP Units, Tanks And Piping

Smoke Detectors

Optional Variable Air Volume (VAV)

Duct Static Pressure Transducer

Details about the pressure transducer and its installation.

VAV Control Board

Describes the VAV control board and its inputs/outputs.

Factory-installed VFD

Manual Bypass

Bas-ready VFD

Optional Hot Gas Bypass (HGBP)

Standard Economizer And Power Exhaust Set Point Adjustments

Enthalpy Set Point Adjustment

Indoor Air Quality AQ

Phasing

Blower Rotation

CFM Static Pressure and Power-Altitude and Temperature Corrections

Drive Selection

Airflow Performance

Air Balance

Checking Air Quantity

Procedures to measure and balance airflow in the system.

Supply Air Drive Adjustment

Operation

Cooling Sequence Of Operation

Explains how the unit operates during various cooling cycles.

Continuous Blower

Intermittent Blower

Optional VAV Start-up and Control

No Outdoor Air Options

Economizer With Single Enthalpy Sensor

Economizer With Dual Enthalpy Sensors

Economizer With Power Exhaust

Economizer With Optional VAV OR Intelli-Comfort Control

Economizer With Optional VAV Blower With Power Exhaust

Economizer With Optional Intelli-Comfort With Power Exhaust

Motorized Outdoor Air Dampers

Cooling Operation Errors

High-Pressure Limit Switch

Details on the high-pressure limit switch function and faults.

Low-Pressure Limit Switch

Details on the low-pressure limit switch function and faults.

Freezestat

Operation and faults related to the freezestat.

Low Ambient Cooling

How the unit operates in low ambient conditions.

Safety Controls

General safety controls monitored by the UCB.

Compressor Protection

Electric Heating Sequence Of Operations

Temperature Limit

Information on the high temperature limit switch.

Limit Switch (Ls)

Details on the limit switch in the heater compartment.

Electric Heat Anticipator Setpoints

Gas Heating Sequence Of Operations

First Stage Of Heating

Details on the first stage of gas heating operation.

Second Stage Of Heating

Details on the second stage of gas heating operation.

Retry Operation

How the system handles ignition retries.

Recycle Operation

Gas Heating Operation Errors

Lock-Out

Explanation of the lockout condition for gas heating.

Temperature Limit

Information on temperature limits in gas heating.

Flame Sense

How flame sensing works and its role in gas heating.

Gas Valve

Monitoring and operation of the gas valve.

Limit Switch (LS)

Details on the gas heat limit switch.

Auxiliary Limit Switch (ALS)

Details on the auxiliary limit switch.

Pressure Switch (PS)

Rollout Switch (ROS)

Internal Microprocessor Failure

Start-Up (Cooling)

Prestart Check List

Checks to perform before starting the unit in cooling mode.

Operating Instructions

Steps for operating the unit in cooling mode.

Post Start Check List

Checks to perform after starting the unit in cooling mode.

Start-Up (Gas Heat)

Pre-Start Check List

Checks to perform before starting the unit in gas heat mode.

Checking Gas Heat Input

To determine the rate of gas flow (Second Stage)

Procedure for checking second stage gas flow.

To determine the rate of gas flow (First Stage)

Procedure for checking first stage gas flow.

Manifold Gas Pressure Adjustment

Adjustment Of Temperature Rise

Burners;Orifices Inspection;Servicing

Charging The Unit

Troubleshooting

Predator Flash Codes

Table 29: Unit Control Board Flash Codes

List of UCB flash codes and their descriptions for troubleshooting.

Unit Control Board Option Setup

Option Byte Setup

Details on setting the unit's option byte configuration.

Heat Delay Setup

Details on setting the heat delay parameters.

Cooling Troubleshooting Guide

Gas Heat Troubleshooting Guide