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YMAE
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Manual
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Figure 15: Pump kit 0105S
F
i
g
u
r
e
1
6
:
Pump
kit
0105D
Callout
Description
Callout
Description
A
Air purger
D
Shutoff valves
B
Strainer
E
Connection to unit
C
VSD Pump
F
Drainage valves
YMAE Air-Cooled Inverter Scroll Chiller and Heat Pump
32
31
33
Table of Contents
Main Page
Table of Contents
3
General Safety Guidelines
7
Safety Symbols
7
Changeability of this Document
8
Wiring Warning
8
Refrigerant Warning
8
Conditioned Based Maintenance
9
Nomenclature
9
General Chiller Information and Safety
10
About this Guide
10
Introduction
10
Warranty
10
Handling
11
Safety Standards
11
Fluorinated Greenhouse Gases
11
Responsibility for Safety
12
Misuse of Equipment
12
Suitability for Application
12
Structural Support
12
Mechanical Strength
12
General Access
12
Pressure Systems
12
Electrical
12
Heat Radiation
12
Rotating Parts
13
Sharp Edges
13
Refrigerants and Oils
13
High Temperature and Pressure Cleaning
13
Emergency Shutdown
13
MSDS Information
13
Generator Operation
14
Safety Labels
15
YMAE Units with R-454B Refrigerant
16
Product Description
17
Introduction
17
General System Description
17
Compressors
17
Refrigerant Circuits
17
Heat Exchanger
18
Ambient Coils
18
SPC, Control Panel, and HMI
19
SC-Equip (SC-EQ)
19
Canadian Registration Number (CRN) Application
19
Accessories and Options
20
Low Sound Kit
20
Neoprene Pads Isolators
20
In. Spring Isolators
20
Flow Switch for Special Temperature Difference
20
Water Temperature Sensor in a Modular Array
20
Hydro Kit
20
Enclosure Panels
21
Air-To-Water Heat Pump Unit Modes of Operation
21
Two-Pipe Cooling Mode
21
Two-Pipe Heating Mode
22
Four-Pipe Cooling Mode
23
Four-Pipe Heating Mode
23
Defrost Mode
25
Four-Pipe Simultaneous Cooling and Heat Recovery
26
Component Location Diagrams
27
R-454B Components
34
Rigging, Handling, and Storage
35
Lifting Weights
36
Delivery and Storage
40
Inspecting the Delivery
40
Moving the Unit
41
Removing the Unit from the Shipping Container
41
Lifting the Unit
43
Moving the Unit by Crane
45
Installation
46
Location and Clearance
46
Outdoor Installations
46
Noise Sensitive Locations
46
Corrosion Locations
47
Operating in Low Ambient Conditions
47
Location Clearances
47
Installation of Vibration Isolators
54
Pipework Arrangement
54
Connection Types and Sizes
54
Installing the Neoprene Isolators
55
Installing the 1 In. Deflection Spring Isolators
56
Installing the 2 In. Deflection Spring Isolators
57
R-454B Pipework
58
Water Treatment
58
Electrical Connection
60
Power Wiring
60
Control Wiring
61
Modular Communications
63
Commissioning
72
Preparing with the Power off
72
Preparing with the Power on
73
First Time Start-Up
74
Special Items Required for Vacuuming and Refrigerant Charging
74
Vacuuming Procedure
75
Confirming a Vacuum
76
Water Evaporation
76
Refrigerant Charging for R-454B
77
Confirming the Correct Refrigerant Tank
77
Charging the Refrigerant
77
Technical Data
79
Heat Exchanger Flow
79
Operational Limitations
80
Operating and Storage Conditions
81
Physical Data
84
Electrical Data
87
Refrigerant and Oil Charge
88
Water Requirements
89
Sound Data
89
Dimensions
90
Unit Operation
100
General
100
Control System
100
Unit Operating Sequence
100
Human Machine Interface (HMI)
102
Main Interface
103
System
104
Unit
105
Fault
107
Hmi
108
Changing the System Setpoints
108
Changing the Access Level
108
Starting or Stopping the Chiller
108
Setting the Date and Time
109
Setting a Schedule
109
Setting a Holiday
109
Setting the Water Temperature Control Using Return (RT) or Leaving (LT)
109
Setting the Cooling and Heating Setpoints
109
Setting the Low Temperature Leaving Alarm
110
Maintenance
111
General Requirements
111
Daily Maintenance
111
Pressure Relief Valves
112
Overall Unit Inspection
112
Heat Exchanger In-Service Inspection
112
Maintenance Alerts
112
Scheduled Maintanence
113
Service and Troubleshooting
114
Decommissioning, Dismantling, and Disposal
118
General
118
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