Table of Contents
Advertisement
R-410A
ZF SERIES
3 - 6.3 Ton
50 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation safety information . . . . . . . . . . . . . . . . . . . . . . . 7
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Service access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical cool/heat control wiring (Smart Equipment™ ZF036-
076) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power and control wiring. . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional electric heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Optional gas heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
L.P. units, tanks, and piping . . . . . . . . . . . . . . . . . . . . . . . 14
Vent and combustion air hoods. . . . . . . . . . . . . . . . . . . . . 15
RRS economizer interface overview . . . . . . . . . . . . . . . . . 16
Smart Equipment™ economizer sequences. . . . . . . . . . . 16
Dry bulb changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Single enthalpy changeover . . . . . . . . . . . . . . . . . . . . . . . 17
Dual enthalpy changeover . . . . . . . . . . . . . . . . . . . . . . . . 17
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Free cooling operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Jade Economizer interface overview . . . . . . . . . . . . . . . . 22
ZF036-076 unit weights. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PHASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Supply air blowers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Checking supply airflow rate . . . . . . . . . . . . . . . . . . . . . . . 35
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cooling sequence of operation . . . . . . . . . . . . . . . . . . . . . 37
1 Control wire sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Electric heater supply air limitations . . . . . . . . . . . . . . . . 13
3 Gas heat application data . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Gas pipe sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Smart Equipment™ Economizer Board details . . . . . . . 19
7 ZF036-076 imperial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8 ZF036-076 metric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9 ZF036-076 unit accessory weights . . . . . . . . . . . . . . . . . 25
10 ZF036-076 physical data. . . . . . . . . . . . . . . . . . . . . . . . . 26
11 Electrical data ZF036-076 . . . . . . . . . . . . . . . . . . . . . . . . 28
12
Electric heat correction factors . . . . . . . . . . . . . . . . . . . . 28
13 Voltage limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
14 Utilities entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
15 Minimum clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
side duct applications . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
TABLE OF CONTENTS
Electric heating sequence of operations . . . . . . . . . . . . . . 39
Safety controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . . . . . 40
Gas heating sequence of operation . . . . . . . . . . . . . . . . . 40
Gas heat operation errors . . . . . . . . . . . . . . . . . . . . . . . . . 40
Flash codes or error messages. . . . . . . . . . . . . . . . . . . . . 41
Heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . . . . . . 41
Start-up (cooling). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Prestart checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Post start checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Shutting down the unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Start up (gas heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Pre-start checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Post start checklist (gas) . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Manifold gas pressure adjustment . . . . . . . . . . . . . . . . . . 43
Pilot checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Burner instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Burner air shutter adjustment . . . . . . . . . . . . . . . . . . . . . . 43
Checking gas input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Adjustment of temperature rise . . . . . . . . . . . . . . . . . . . . . 44
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cooling troubleshooting guide. . . . . . . . . . . . . . . . . . . . . . 45
Gas heat troubleshooting guide . . . . . . . . . . . . . . . . . . . . 46
Flash code troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 47
Symptomatic troubleshooting . . . . . . . . . . . . . . . . . . . . . . 49
Unit flash codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Fan on and off delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Typical wiring diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Simplicity® Lite control board . . . . . . . . . . . . . . . . . . . . . . 58
Smart Equipment™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
LIST OF TABLES
application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
19 Belt drive motor and drive data . . . . . . . . . . . . . . . . . . . . 35
20 Static resistances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
21 Limit control setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
22 Electric heat anticipator setpoints . . . . . . . . . . . . . . . . . . 40
23 Limit control setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
24 Gas heat anticipator setpoints . . . . . . . . . . . . . . . . . . . . 41
25 Gas rate - cubic feet per hour . . . . . . . . . . . . . . . . . . . . . 44
26 Simplicity Lite unit control board flash codes . . . . . . . . . 51
27 Ignition control board flash codes . . . . . . . . . . . . . . . . . . 51
28 Smart Equipment™ UCB details . . . . . . . . . . . . . . . . . . 52
29 Cable for FC buses and SA buses in order of preference 57
Advertisement
Table of Contents
Troubleshooting
Related Manuals for York ZF076
Summary of Contents for York ZF076
-
Page 1: Table Of Contents
R-410A ZF SERIES 3 - 6.3 Ton 50 Hertz TABLE OF CONTENTS General ......... . 3 Electric heating sequence of operations . - Page 2 5725848-XIM-A-0319 LIST OF FIGURES 1 Recommended drain piping ..... . . 9 22 Gas valve piping ......40 2 Compressor restraining bracket .
-
Page 3: General
5725848-XIM-A-0319 General YORK Model ZF units are either single package air conditioners equipped with optional factory installed electric heaters, or single package gas-fired central heating furnaces with cooling FIRE OR EXPLOSION HAZARD unit. Both are designed for outdoor installation on a rooftop or slab. - Page 4 5725848-XIM-A-0319 Due to system pressure, moving parts, and electrical components, installation and servicing of air conditioning equipment can be hazardous. Only qualified, trained service personnel should install, repair, or service this equipment. Before performing service or maintenance operations on Untrained personnel can perform basic maintenance functions unit, turn off main power switch to unit.
- Page 5 5725848-XIM-A-0319 Renewal parts ® Contact your local York parts distribution center for authorized replacement parts. Improper installation may create a condition where the Approvals operation of the product could cause personal injury or property damage. Design for use as follows: For use as a cooling only unit, cooling unit with supplemental electric heat or a forced air furnace.
- Page 6 5725848-XIM-A-0319 Product nomenclature ® 3-6.3 Ton York 50 Hz. Model Number Nomenclature Z F 036 C A 7 A 1 Product Generation Product Category 1 = First Generation Z = A/C, Single Pkg., R-410A Cabinet Options A = Std Cabinet...
-
Page 7: Installation
5725848-XIM-A-0319 Installation Limitations These units must be installed in accordance with the following: Installation safety information In U.S.A.: Read these instructions before continuing this appliance National Electrical Code, ANSI/NFPA No. 70 - Latest installation. This is an outdoor combination heating and cooling Edition unit. -
Page 8: Rigging And Handling
If a unit is to be installed on a roof curb or special frame other 7.3, or 7.4 of Gas Installation Codes, CSA-B149.1 (in Canada) - than a YORK roof curb, gasketing must be applied to all Latest Edition, and/or applicable provisions of the local building surfaces that come in contact with the unit underside. -
Page 9: Condensate Drain
5725848-XIM-A-0319 Condensate drain Plumbing must conform to local codes. Use a sealing compound on male pipe threads. Install a condensate drain line Do not loosen compressor mounting bolts. from the 3/4” NPT female connection on the unit to an open drain. - Page 10 5725848-XIM-A-0319 Typical power wiring REFER TO THE ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH, OVERCURRENT PROTEC- TION AND WIRING. Typical control wiring CONTROL TERMINAL THERMOSTAT BLOCK TERMINALS SD-24 Smoke Detector Jumper TERMINALS ON A LIMITED NUMBER OF THERMOSTATS 24 VAC Class 2 Second stage ot required on single stage he...
-
Page 11: Typical Cool/Heat Control Wiring
5725848-XIM-A-0319 Typical cool/heat control wiring (Smart Equipment™ ZF036-076) R~Occ Jumper: CONTROL TERMINAL Smart Equipment Control boards come from the THERMOSTAT BLOCK TERMINALS factory with a jumper wire between R and OCC terminals on the thermostat terminal strip. Failure to remove this jumper will place the unit into the Occupied mode no matter what the occupancy demand is from the thermostat or EMS system. -
Page 12: Optional Electric Heat
5725848-XIM-A-0319 conditions, are indicated on the unit Rating Plate and the Unit Refer to the Typical Field Wiring Figures 3 and 4 and to the Application Data table. appropriate unit wiring diagram for control circuit and power wiring information. Table 1: Control wire sizes 380/415-3-50 units control transformers are factory Wire Size Maximum Length... -
Page 13: Optional Gas Heat
5725848-XIM-A-0319 Table 2: Electric heater supply air limitations HEATER SIZE NOMINAL KW UNIT MODEL SIZE MINIMUM SUP- VOLTAGE NOMINAL TONS PLY AIR 0.47 0.57 0.57 0.61 380/415-3-50 1100 1200 1200 1300 0.61 0.61 0.61 0.61 380/415-3-50 1300 1300 1300 1300 0.75 0.75 0.75... -
Page 14: L.p. Units, Tanks, And Piping
5725848-XIM-A-0319 in the unit's base. Refer to Figures 13 and 15 to locate these access openings. Typical supply piping arrangements are shown in Figures 5 and 6. All shaded items are field-supplied. If gas supply line is routed through the unit's base ensure that FIRE OR EXPLOSION HAZARD the burner assembly can be removed for maintenance without disturbing the supply line. -
Page 15: Vent And Combustion Air Hoods
5725848-XIM-A-0319 Vent and combustion air hoods The vent hood and combustion air hood (with screens) are shipped attached to the blower housing in the blower compartment. These hoods must be installed to assure proper unit function. All hoods must be fastened to the outside of the gas heat access panel with the screws provided in the bag also attached to the blower housing. -
Page 16: Rrs Economizer Interface Overview
5725848-XIM-A-0319 RRS economizer interface overview From Level 0 of the parameter menu, navigation to Level 1 of the menu is done with a press of the ^ (scroll up), v (scroll Units with Simplicity Lite Controls will have a field installed down) or ... -
Page 17: Dry Bulb Changeover
5725848-XIM-A-0319 Free cooling operation Minimum Position and the Economizer Minimum Position Low Speed Fan" set points, in relationship to the VFD output percentage. On a constant volume single speed supply fan When the control determines that the outside air is suitable, the system both set-points should be set to the same value. -
Page 18: Power Exhaust
5725848-XIM-A-0319 Power exhaust Outputs a. 2-10 VDC from ECON on Economizer Expansion module Setpoints b. 24 vac from EX-FAN to energize exhaust fan on a. Economizer Enable Economizer Expansion module b. Power Exhaust Enable Operation c. Modulating Power Exhaust d. Exhaust VFD Installed Operation details include: e. -
Page 19: Smart Equipment™ Economizer Board Details
5725848-XIM-A-0319 Figure 9: SE-ECO1001-0 Economizer controller Table 5: Smart Equipment™ Economizer Board details Board Cover Description Function & Comments Label Label Directional orientation: viewed with the center text of the cover label upright ANALOG INPUTS Terminal at left on upper edge of economizer board 24 VAC common/0-10 VDC negative for Connects through circuit trace to 24V~ IN pin COM economizer actuator position feedback... - Page 20 5725848-XIM-A-0319 Table 5: Smart Equipment™ Economizer Board details (continued) Board Cover Description Function & Comments Label Label EconCtrlr parameter reports UCB-to-economizer board SA BUS communication status. Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts reading to C; at least 0.25 volts lower –...
- Page 21 5725848-XIM-A-0319 Table 5: Smart Equipment™ Economizer Board details (continued) Board Cover Description Function & Comments Label Label 24 VAC hot connection to power the economizer board. 24 VAC transformer HOT Connects through circuit traces to R/24V~ terminals and pins distributed on the economizer board. ANALOG INPUTS Terminal on lower edge of economizer board 24 VAC hot supplied for the outdoor air 24V~...
-
Page 22: Jade Economizer Interface Overview
5725848-XIM-A-0319 Table 5: Smart Equipment™ Economizer Board details (continued) Board Cover Description Function & Comments Label Label 24 VAC common/0-5 VDC negative for the Connects through circuit trace to 24V~ IN pin COM building pressure sensor BINARY INPUTS at right on lower edge of economizer board Purge parameter reports input status (False with 0 VAC input- True with 24 VAC input). -
Page 23: Single Enthalpy Curve And Boundaries
5725848-XIM-A-0319 Using the keypad with settings and parameters • SYSTEM SETUP • ADVANCED SETUP To use the keypad when working with Setpoints, System and • CHECKOUT Advanced Settings, Checkout tests, and Alarms: • ALARMS • Navigate to the desired menu. NOTE: Your menu parameters will be different depending on your configuration. -
Page 24: Single Enthalpy And Dual Enthalpy High Limit Curves
5725848-XIM-A-0319 Table 6: Single enthalpy and dual enthalpy high limit curves. Point P1 Point P2 Enthalpy Temp. Temp. Enthalpy Curve Dry-Bulb (°F) Dewpoint (°F) (btu/lb/da) Temp. °F Humidity %RH Temp. °F Humidity %RH 80.0 60.0 28.0 80.0 36.8 66.3 80.1 75.0 57.0 26.0... -
Page 25: Zf036-076 Unit Weights
ZF036 39.6 19.4 (3.0) ZF048 40.1 19.2 (4.0) ZF060 39.2 18.9 (5.0) ZF076 37.7 18.4 (6.3) Table 8: ZF036-076 metric Size Weight (kg.) Center of Gravity (mm) 4 point Load Location (kg.) 6 point Load Location (kg.) Model Shipping Operating... -
Page 26: Zf036-076 Physical Data
5725848-XIM-A-0319 Table 10: ZF036-076 physical data Models Component ZF036 ZF048 ZF060 ZF076 Nominal Tonnage ARI COOLING PERFORMANCE Gross Capacity @ ARI A point (Btu) 36400 51472 60400 72600 ARI net capacity (Btu) 35200 49635 57800 69100 EER (Net) 11.5 11.8 11.5... - Page 27 5725848-XIM-A-0319 Table 10: ZF036-076 physical data (continued) Models Component ZF036 ZF048 ZF060 ZF076 Nominal Tonnage CONDENSER FAN DATA Quantity Fan diameter (Inch) Type Prop Prop Prop Prop Drive type Direct Direct Direct Direct Quantity of motors Motor HP each No. speeds...
-
Page 28: Electrical Data Zf036-076
18.7 2EH04510746 18.7 2EH04511046 18.7 380-3-50 11.2 17.5 2.03 2EH04511546 12.9 19.5 2EH04512046 12.2 18.5 26.5 2EH04513046 18.1 27.5 37.8 ZF076 NONE 18.7 2EH04510746 18.7 2EH04511046 10.4 18.7 415-3-50 11.2 17.5 2.03 2EH04511546 10.2 14.2 21.1 2EH04512046 14.6 20.3 28.8 2EH04513046 21.5... -
Page 29: Unit Dimensions (3 - 6.3 Ton Cooling Only/Electric Heat) Front
5725848-XIM-A-0319 111 [4 178 [7] mm[inch] 2089 1140 445 [17 165 [6 445 [17 171 [6 819 [32 Figure 14: Unit dimensions (3 - 6.3 ton cooling only/electric heat) front view 111 [4 178 [7] mm[inch] 2089 1140 445 [17 165 [6 445 [17 171 [6... -
Page 30: Unit With Fixed Outdoor Air/Motorized Damper Rain Hood
5725848-XIM-A-0319 1140 mm[inch] DETAIL “A” Figure 16: Unit with economizer rain hood 1140 305 [12] DETAIL “B” mm[inch] 419 [16 Figure 17: Unit with fixed outdoor air/motorized damper rain hood Johnson Controls Ducted Systems... -
Page 31: Utilities Entry
5725848-XIM-A-0319 76 [3] mm[inch] 117 [4 Figure 18: Unit dimensions (rear view) Table 15: Minimum clearances CLEARANCE (mm / In.) LOCATION Filter Access 610 / 24.0 (Cooling/Electric Heat) Front 813 / 32.0 (Gas Heat) Blower Motor Access 305 / 12.0 (Less Economizer) Back 914 / 36.0 (With Economizer or Dot Plugs... -
Page 32: Supply Air Blower Performance (3 And 4 Ton Direct Drive) - Side Duct Applications
5725848-XIM-A-0319 Table 16: Supply air blower performance (3 and 4 ton direct drive) - side duct applications AVAILABLE EXTERNAL STATIC PRESSURE-Pa* UNIT MOTOR SPEED TONNAGE WATTS WATTS WATTS WATTS WATTS 0.80 0.78 0.74 0.79 0.77 0.75 0.72 0.67 0.70 0.69 0.67 0.64 0.62... -
Page 33: Supply Air Blower Performance (5 Ton Belt Drive) - Side Duct Application
5725848-XIM-A-0319 Table 17: Supply air blower performance (5 ton belt drive) - side duct application AVAILABLE EXTERNAL STATIC PRESSURE-Pa* UNIT FLOW TONNAGE RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 1.18 1059 1560 1077 1590 1095 1630... -
Page 34: Supply Air Blower Performance (6.3 Ton Belt Drive) - Side Duct
5725848-XIM-A-0319 Table 18: Supply air blower performance (6.3 ton belt drive) - side duct application AVAILABLE EXTERNAL STATIC PRESSURE-Pa* UNIT FLOW TONNAGE RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 1.50 1150 2325 1182 2425 1.42 1100... -
Page 35: Phasing
3. Add these resistance values to the available static resistance values on SUPPLY AIR BLOWER PERFORMANCE Tables. Phasing Supply air blowers YORK MODEL ZF units are properly phased at the factory. These blowers have either 3-speed direct drive motors, or Check for proper compressor rotation. If the blower or single speed motors equipped with a belt drive. -
Page 36: Belt Adjustment
5725848-XIM-A-0319 Note the following: Pulleys can be adjusted in half turn increments. The tension on the belt should be adjusted as shown in the Belt drive blower systems MUST be adjusted to the Belt Adjustment Figure 20. specific static and CFM requirements for the application. Tighten blower pulley and motor sheave set screws after The belt drive blowers are NOT set at the factory for any any adjustments. -
Page 37: Operation
5725848-XIM-A-0319 No outdoor air options When the thermostat calls for cooling, the low-voltage control circuit from “R” to “Y1” and “G” is completed. The compressor and condenser fan motor are energized. After completing the specified fan on delay for cooling, the UCB will energize the blower motor. Once the thermostat has been satisfied, it will de-energize Y1. - Page 38 5725848-XIM-A-0319 operating, the second stage of mechanical cooling will not Should a freezestat open three times within two hours of operate. As always, the "R" to "G" connection provides operation, the UCB will lock-out the associated compressor and minimum position but does not provide power exhaust flash a code on the Simplicity Lite Control (Table 26).
-
Page 39: Electric Heating Sequence Of Operations
5725848-XIM-A-0319 call for cooling is still present at the end of the ASCD and the Reset evaporator temperature is above 26ºF, the unit will resume Remove the call for cooling, by raising thermostat setting higher operation. than the conditioned space temperature. This resets any pressure or freezestat lockouts. -
Page 40: Heat Anticipator Setpoints
5725848-XIM-A-0319 coil. Once the flame sensor senses a pilot flame is present, the Table 21: Limit control setting ignition coil is de-energized. The ICB checks for pilot flame TEMPERTURE Open Temp VOLTAGE stability and once the ICB is satisfied that the pilot flame is LIMIT SWITCH ºC[ºF] stable, the main gas valve is energized by the ICB. -
Page 41: Flash Codes Or Error Messages
5725848-XIM-A-0319 Temperature limits then the ICB will energize the draft motor and verify that the switch closes before initiating the purging and ignition The primary limit is located such that the temperature sensitive sequence. If at any time during furnace operation the switch can sense the temperature of the heat exchanger tubes. -
Page 42: Start-Up (Cooling)
5725848-XIM-A-0319 Start-up (cooling) Operating instructions Prestart checklist After installation has been completed: Check the electrical supply voltage being supplied. Be sure This furnace is equipped with an intermittent pilot and that it is the same as listed on the unit nameplate. automatic re-ignition system. -
Page 43: Manifold Gas Pressure Adjustment
5725848-XIM-A-0319 Pilot checkout The pilot flame should envelope the end of the flame sensor. To adjust pilot flame, (1) remove pilot adjustment cover screw, (2) increase or decrease the clearance for air to the desired level, (3) be sure to replace cover screw after adjustment to prevent possible gas leakage. -
Page 44: Adjustment Of Temperature Rise
5725848-XIM-A-0319 meter. A typical gas meter usually has a 1/2 or a 1 cubic Table 25: Gas rate - cubic feet per hour foot test dial. Size of Test Dial Seconds for one rev. 1/2 cu. ft. 1 cu. ft. Using the number of seconds for each revolution and the size of the test dial increment, find the cubic feet of gas consumed per hour from the Gas Rate - Cubic Feet Per... -
Page 45: Troubleshooting
5725848-XIM-A-0319 Troubleshooting If 24 volts is not present at M2, check that 24 volts is present at the UCB supply air blower motor terminal, “FAN”. If 24 volts is present at the FAN, check for loose Cooling troubleshooting guide wiring between the UCB and M2. If 24 volts is not present at the “FAN”... -
Page 46: Gas Heat Troubleshooting Guide
5725848-XIM-A-0319 a. 24 volts at the thermostat Y1 terminal failing to return the 24-volt “call” to the Y1 “ECON” terminal even though the economizer is not providing free cooling. b. Proper wiring between the room thermostat and the To test, disconnect the Mate-N-Locks and jumper between UCB, i.e. -
Page 47: Flash Code Troubleshooting
5725848-XIM-A-0319 common wires between the unit control box and the ICB and repair as necessary. If the control voltage is present, then verify the cleanliness of the harness and the ICB connector, clean if necessary and reconnect the wiring harness to the ICB and The furnace may shut down on a high tempera- observe ICB LED. - Page 48 5725848-XIM-A-0319 per the wiring diagram. Place the gas valve in the on energizes the indoor blower until the primary limit automatically position and verify proper furnace operation. resets or the auxiliary limit is manually reset. Verify adequate air flow through the furnace. If air flow is nonexistent or weak, then If the flash code indicates the switch is closed with the draft troubleshoot and repair the conditioned space air circulation (inducer) motor off (flash code 3), then disconnect the 9 pin...
-
Page 49: Symptomatic Troubleshooting
5725848-XIM-A-0319 Unexpected flame presence If 24 volts is present at the UCB terminal, check for loose wiring between the UCB and M2. If a flame is present without a call for heat (flash code 8), then If 24 volts is not present at the UCB supply air blower motor the ICB will continue operation of the draft motor and the UCB terminal, check for 24 volts from the room thermostat. -
Page 50: Unit Flash Codes
5725848-XIM-A-0319 Unit flash codes motor is at fault. On 575 volt models, if voltage is present at the terminal, then check the draft motor relay (DMR on single stage gas heat and DMR-2 on two stage gas heat) Various flash codes are utilized by the unit control board (UCB) mounted above the ICB. -
Page 51: Navigation Components For The Smart Equipment™ Control
5725848-XIM-A-0319 Table 27: Ignition control board flash codes Test Reset Last Error Control Board Comm Setup Button Button Button Flash Code Description Heart Beat Normal Operation 1 Flash Not Applicable 2 Flashes Pressure / Centrifugal Switch Open with Inducer On 3 Flashes Pressure / Centrifugal Switch Closed with Inducer Off 4 Flashes... -
Page 52: Smart Equipment™ Ucb Details
5725848-XIM-A-0319 THERMOSTAT WIRED HERE SD-24 Figure 27: Smart Equipment™ unit control board Table 28: Smart Equipment™ UCB details Description Function & Comments Terminal Directional orientation: viewed with silkscreen labels upright Limit, 24 VAC power and shutdown connections from unit wiring harness at left on upper edge of UCB Monitored 24 VAC input through heat section limit If voltage is absent, indicating the heat section is over- LIMIT... - Page 53 5725848-XIM-A-0319 Table 28: Smart Equipment™ UCB details (continued) Description Function & Comments Terminal Thermostat connection strip on left edge of UCB 1st stage heating request, 24 VAC input switched Not effective for cooling-only units from R 2nd stage heating request, 24 VAC input switched Not effective for cooling-only units or units with single-stage from R heat sections...
- Page 54 5725848-XIM-A-0319 Table 28: Smart Equipment™ UCB details (continued) Description Function & Comments Input required for operation; 3.625 VDC reading RAT+ to RAT– Return Air Temperature sensor input from 10KΩ with open circuit. Used in return air enthalpy calculation. RAT+ @ 77°F, Type III negative temperature coefficient Substitutes for space temperature if no other space thermistor temperature input is present.
- Page 55 5725848-XIM-A-0319 Table 28: Smart Equipment™ UCB details (continued) Description Function & Comments Terminal at lower right corner of UCB 24 VAC hot for H1, H2, CN-FAN, AUX HGR, FAN Output relay circuitry is isolated from other UCB components 24V FOR OUTPUTS C1 and and the 24 VAC hot source may be from a second transformer C2 output relay contact switching...
- Page 56 5725848-XIM-A-0319 Table 28: Smart Equipment™ UCB details (continued) Description Function & Comments Not effective for one stage compressor UCBs. Input is only considered if C2 output is needed; input must be present to HPS2 24 VAC hot return from refrigerant circuit 2 High allow C1 output.
- Page 57 5725848-XIM-A-0319 Table 28: Smart Equipment™ UCB details (continued) Description Function & Comments Factory wired SA Bus connector Optional communication sub-board at center of UCB Terminal FC BUS connections on left edge of the communication board Positive of the VDC (typically, a fluctuating 1.5 to 3.5 volts FC (“Field Connected”) BUS BACnet MSTP reading to COM;...
-
Page 58: Typical Wiring Diagrams
5725848-XIM-A-0319 Typical wiring diagrams Simplicity® Lite control board Figure 28: Typical ZF036, 048 with Simplicity Lite control, with/without electric heat wiring diagram Johnson Controls Ducted Systems... -
Page 59: Typical Zf036, 048 With Simplicity Lite Control, With Gas
5725848-XIM-A-0319 Figure 29: Typical ZF036, 048 with Simplicity Lite control, with gas heat wiring diagram Johnson Controls Ducted Systems... -
Page 60: Typical Zf060, 076 With Simplicity Lite Control, With/Without Electric Heat Wiring Diagram
5725848-XIM-A-0319 Figure 30: Typical ZF060, 076 with Simplicity Lite control, with/without electric heat wiring diagram Johnson Controls Ducted Systems... -
Page 61: Typical Zf060, 076 With Simplicity Lite Control, With Gas
5725848-XIM-A-0319 Figure 31: Typical ZF060, 076 with Simplicity Lite control, with gas heat wiring diagram Johnson Controls Ducted Systems... -
Page 62: Smart Equipment
5725848-XIM-A-0319 Smart Equipment™ Figure 32: Typical ZF036, 048 with Smart Equipment™ control, with/without electric heat wiring diagram Johnson Controls Ducted Systems... -
Page 63: Typical Zf036, 048 With Smart Equipment™ Control, With
5725848-XIM-A-0319 Figure 33: Typical ZF036, 048 with Smart Equipment™ control, with gas heat wiring diagram Johnson Controls Ducted Systems... -
Page 64: Typical Zf060, 076 With Smart Equipment™ Control, With
5725848-XIM-A-0319 Figure 34: Typical ZF060, 076 with Smart Equipment™ control, with/without electric heat wiring diagram Johnson Controls Ducted Systems... -
Page 65: Typical Zf060, 076 With Smart Equipment™ Control, With
5725848-XIM-A-0319 Figure 35: Typical ZF060, 076 with Smart Equipment™ control, with gas heat wiring diagram Johnson Controls Ducted Systems... -
Page 66: Start-Up Sheet
5725848-XIM-A-0319 Start-up sheet Johnson Controls Ducted Systems... - Page 67 5725848-XIM-A-0319 Johnson Controls Ducted Systems...
- Page 68 5725848-XIM-A-0319 Johnson Controls Ducted Systems...
- Page 69 5725848-XIM-A-0319 Johnson Controls Ducted Systems...
- Page 70 5725848-XIM-A-0319 Johnson Controls Ducted Systems...
-
Page 71: 5725848-Xim-A-0319
Subject to change without notice. Printed in U.S.A. 5725848-XIM-A-0319 Copyright © 2019 by Johnson Controls, Inc. All rights reserved. Supersedes: 5188250-XIM-B-1016 York International Corporation 5005 York Drive Norman, OK 73069...
Need help?
Do you have a question about the ZF076 and is the answer not in the manual?
Questions and answers