Johnson Controls MagnaDRY WK-20 Air Manuals

Manuals and User Guides for Johnson Controls MagnaDRY WK-20 Air. We have 1 Johnson Controls MagnaDRY WK-20 Air manual available for free PDF download: Installation Manual

Johnson Controls MagnaDRY WK-20 Installation Manual (76 pages)

Brand: Johnson Controls | Category: Air Conditioner | Size: 3 MB

Table of Contents
2
General
4
Safety Considerations
4
Inspection
4
Reference
4
Renewal Parts
5
Approvals
5
Product Nomenclature
6
Installation
7
Installation Safety Information
7
Limitations
7
Unit Application Data
7
Location
8
Rigging and Handling
8
Clearances
8
Typical Rigging
8
Center of Gravity
8
Ductwork
9
Fixed Outdoor Air Intake Damper
9
Condensate Drain
10
Compressors
10
Filters
10
Service Access
10
Fixed Outdoor Air Damper
10
Recommended Drain Piping
10
Typical Field Wiring
11
Factor
11
Thermostat
12
Space Sensor
12
Power and Control Wiring
12
Optional Electric Heat
12
Control Wire Sizes
12
Optional Gas Heat
13
Gas Piping
13
Electric Heat Application Data
13
Gas Heat Application Data
13
Pipe Sizing
13
Gas Connection
14
Shut-Off
14
L.p. Units, Tanks and Piping
15
Vent and Combustion Air Hoods
15
External Supply Connection External
15
Bottom Supply Connection External
15
Optional Economizer/Motorized Damper Rain Hood
16
Optional Power Exhaust/Barometric Relief Damper Rain Hood
16
Optional Economizer and Power Exhaust Damper Setpoint Adjustments and Information
16
Minimum Position Adjustment
16
Enthalpy Setpoint Adjustment
16
Vent and Combustion Air Hood
16
Power Exhaust Damper Setpoint
17
Indoor Air Quality
17
Optional Bas-Ready Economizer Power Exhaust Damper Set Point Adjustment
17
Optional Variable Air Volume (Vav)
17
Duct Static Pressure Transducer
17
Vav Control Board
17
Factory-Installed Vfd
18
Manual Bypass
19
Bas-Ready Vfd
19
Vfd-Ready' for Customer-Installation
20
Optional Hot Gas Bypass (Hgbp)
20
Enthalpy Setpoint Adjustment
21
Four and Six Point Loads
22
Physical Data
23
Supply Fan Vfd Weights, in Lbs
23
Wk Electrical Data - Standard Drive Motor W/O Powered Convenience Outlet
24
Wk Electrical Data - High Static Drive Motor W/O Powered Convenience Outlet
25
Wk Electrical Data - Low Static Drive Motor W/O Powered Convenience Outlet
26
Wk Electrical Data - Standard Drive Motor with Powered Convenience Outlet
27
Wk Electrical Data - High Static Drive Motor with Powered Convenience Outlet
28
Wk Electrical Data - Low Static Drive Motor with Powered Convenience Outlet
29
Unit Clearance and Rain Hood Dimensions
32
Cfm, Static Pressure, and Power - Altitude and Temperature Corrections
33
Static Resistances
47
Blower Motor and Drive Data
47
Charging Chart - 20 Ton
48
Phasing
49
Checking Supply Air Cfm
49
Charging Chart - 25 Ton
49
Air Balance
50
Pressure Drop Across a Dry Indoor Coil Vs Supply Air Cfm for All Unit Tonnages
50
Operation
51
Sequence of Operations Overview
51
Cooling Sequence of Operation
51
Continuous Blower
51
Intermittent Blower
51
Optional Vav Blower Operation
51
No Outdoor Air Options
51
Economizer with Single Enthalpy Sensor
51
Economizer with Dual Enthalpy Sensors
52
Economizer (Single or Dual Enthalpy) with Power Exhaust
52
Economizer with Optional Vav or Intelli- Comfort™ Control
52
Economizer with Optional Vav Blower with Power Exhaust
53
Economizer with Optional Intelli-Comfort™ with Power Exhaust
53
Motorized Outdoor Air Dampers
53
Cooling Operation Errors
53
High-Pressure Limit Switch
53
Low-Pressure Limit Switch
53
Freezestat
53
Low Ambient Cooling
54
Safety Controls
54
Compressor Protection
54
Flash Codes
54
Reset
54
Reheat Mode Sequence of Operation
54
Normal" Mode
54
Alternate" Mode
55
Reheat Control Board
56
Electric Heating Sequence of Operations
58
Heating Operation Errors
59
Temperature Limit
59
Safety Controls
59
Flash Codes
59
Reset
59
Heat Anticipator Setpoints
59
Limit Control Setting
59
Gas Heating Sequence of Operations
60
Gas Heating Operation Errors
61
Temperature Limit
61
Gas Valve
61
Safety Controls
61
Flash Codes
62
Resets
62
Heat Anticipator Setpoints
62
Start-Up (Cooling)
62
Prestart Check List
62
Limit Control Setting
62
Operating Instructions
63
Post Start Check List
63
Shut down
63
Start-Up (Gas Heat)
63
Pre-Start Check List
63
To Light Pilot and Main Burners
63
To Shut down
63
Post-Start Check List (Gas)
63
Manifold Gas Pressure Adjustment
64
Pilot Checkout
64
Burner Instructions
64
Burner Air Shutter Adjustment
64
Checking Gas Input
64
Natural Gas
64
Adjustment of Temperature Rise
65
Belt Drive Blower
65
Troubleshooting
65
Cooling Troubleshooting Guide
65
Shut-Off
65
Gas Heat Troubleshooting Guide
70
Unit Control Board Flash Codes
73
Unit Control Board
74
Unit Control Board Flash Codes
74
Unit Control Board Option Setup
75
Option Byte Setup
75
Heat Delay Setup
75
Heat Delay
75
Optional Vav Control Board Flash Codes
76
Vav Control Board Flash Codes
76

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