Radiant EcoSmart ES50LVP User manual

P/N 14000A-PRERAD
ES50LVP / ES90LVP
PREMIUM MODULATING
AIR HANDLER
Installation, Operation and Maintenance Manual
RADIANT
101 Sharer Road
Woodbridge, ON L4L 8Z3
Tel: [phone]
Fax: [phone]

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Contents
SAFETY INFORMATION ..................................................................................................3
INTRODUCTION ............................................................................................................4
MODES OF OPERATION .................................................................................................4
Modulating Mode .................................................................................................................................4
Step Modulating Mode ......................................................................................................................... 5
Basic Mode............................................................................................................................................ 5
SPECIFICATIONS............................................................................................................8
QUICK START-UP PROCEDURES ....................................................................................10
INSTALLATION ............................................................................................................ 11
Clearances...........................................................................................................................................11
Freeze Protection................................................................................................................................11
Rear Piping Connections .....................................................................................................................11
Ecosmart Mounting.............................................................................................................................12
Plumbing .............................................................................................................................................12
Pump...................................................................................................................................................13
PIPING DIAGRAMS ......................................................................................................15
Typical Tankless Water Heater Piping.................................................................................................15
Typical Boiler Piping............................................................................................................................16
ELECTRICAL.................................................................................................................17
Electrical Information..........................................................................................................................17
Thermostat Wiring..............................................................................................................................17
Ecosmart ES50LVP/ES90LVP Wiring Diagram .....................................................................................18
Miscellaneous Wiring..........................................................................................................................19
DIP SWITCH OPTIONS ..................................................................................................20
Switch Locations .................................................................................................................................20
Outdoor Temperature Select..............................................................................................................20
Heat CFM (ES90LVP) ...........................................................................................................................21
Heat CFM (ES50LVP) ...........................................................................................................................21
System (ES990LVP and ES50LVP)........................................................................................................21

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Cool CFM (ES90LVP)............................................................................................................................22
Cool CFM (ES50LVP)............................................................................................................................22
SEQUENCE OF OPERATION...........................................................................................23
Full Modulation...................................................................................................................................23
Step Modulation .................................................................................................................................23
Basic Modulation Mode......................................................................................................................24
Cooling Mode (Modulation, Step and Basic) ......................................................................................24
Dehumidification.................................................................................................................................25
............................................................................................................................................................25
Fan Mode ............................................................................................................................................25
Constant Low Fan Circulation .............................................................................................................25
Pump Exerciser....................................................................................................................................25
SERVICE AND MAINTENANCE .......................................................................................26
Filter ....................................................................................................................................................26
Coils.....................................................................................................................................................26
Fan and Motor ....................................................................................................................................26
Control and Blower Assembly Removal..............................................................................................26
TROUBLESHOOTING ....................................................................................................27
Thermostat call error ..........................................................................................................................27
External pump does not run ...............................................................................................................27
External pump is noisy at start-up ......................................................................................................27
Water heater temperature and pressure relief valve is weeping ......................................................27
Insufficient or no heat.........................................................................................................................27
Cold water at hot faucet .....................................................................................................................28
Fan runs for cooling but not for heating.............................................................................................28
Heating during standby mode ............................................................................................................28
WARRANTY ................................................................................................................ 28
All technical information subject to change without notice.

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SAFETY INFORMATION
It is the responsibility of the installer to ensure the installation complies with all national and
local building codes and standards, in addition to the instructions outlined in this manual. All
applicable codes take precedence over any instructions made in this document.
This symbol indicates safety alerts. When you see this symbol on labels or in this
manual, be alert to the potential for personal injury. Understand and pay
particular attention to the signal words DANGER, WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which if not avoided, will result
in death or serious injury.
WARNING indicates a potentially hazardous situation, which if not avoided, could
result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which if not avoided, may result
in minor or moderate injury. It is also used to alert against unsafe practices and
hazards involving only property damage.
WARNING - Improper installation may create a condition where the operation of
the product could cause personal injury or property damage. Only a qualified
contractor, installer or service agency should install this product. Improper
installation, adjustment, alteration, service or maintenance can cause injury or
property damage. Refer to this manual for assistance.
CAUTION - This product must be installed in strict compliance with the installation
instructions and any applicable local, state, and national codes including, but not
limited to; building, electrical, and mechanical codes.
WARNING - FIRE OR ELECTRICAL HAZARD. Failure to follow the safety warnings
exactly could result in serious injury, death, or property damage. A fire or electrical
hazard may result causing property damage, personal injury or loss of life.
WARNING - Hot water from a boiler used to satisfy heating requirements can be
heated to temperatures of 180°F. Parts containing water this hot can scald very
quickly. Use extreme caution when servicing or performing maintenance on any
parts containing hot water. To avoid severe burns, allow equipment to cool before
performing maintenance.

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INTRODUCTION
The ecosmart hydronic furnace is designed to maximize performance and comfort in residential
or light commercial applications. The ecosmart can be used with a variety of heat sources such
as boilers and water heaters and can be implemented in combo systems that provide domestic
hot water as well as space heating.
Smart control systems within the ecosmart allow extraction of maximum heat by allowing
condensing high efficiency heat sources to work at their maximum efficiency while providing
ultimate comfort with unmatched performance.
Simple, independent heat/cool and system parameters can easily be set by the installer to
adjust for a wide variety of installations. Various parameters are automatically monitored and
fan and pump speeds vary simultaneously. The ecosmart has a built-in variable speed pump
controller that can vary the speed of a standard single speed AC pump.
MODES OF OPERATION
Three modes of operation are available:
1. Full modulation –full control of fan and pump (requires outdoor temperature sensor).
2. Step modulation –timed fan and pump sequencing.
3. Single stage –standard furnace emulation.
Modulating Mode
(ecosmart outdoor sensor installed)
Water temperature is set at the heat generator by referring to the heat generator performance
data. It is best to maintain constant water temperature at the heat generator.
If the heat generator comes with an optional outdoor temperature sensor do not
install it as it will conflict with the ecosmart control.

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The fan operates at the speed selected on the HEAT CFM switch during the setup. Fan and
pump speed automatically reduce as outdoor temperature rises. Fan CFM may reduce by up to
30% from the HEAT CFM switch setting depending on outdoor temperature.
If the heat generator includes a built-in pump, and it is directly connected to the ecosmart, the
ecosmart will vary the pump automatically. If the system is configured for primary/secondary
pumping and the heat generator includes a pump, the secondary pump can be controlled by
the ecosmart.
Step Modulating Mode
(ecosmart outdoor sensor not installed)
Water temperature is set at the heat generator by referring to the heat generator performance data.
Fan operates at 50% of the HEAT CFM setting for 5 minutes then increases to 75% for a further 5
minutes, then increases to 100% until the thermostat is satisfied. If the pump is controlled by the
ecosmart, its speed will be adjusted accordingly as the ecosmart goes through its stages. If the pump is
controlled by the heat source, it will function according to the heat source control strategy.
Basic Mode
(ecosmart outdoor sensor not installed)
Water temperature is set at the heat generator by referring to the heat generator performance
data. Fan operates at 100% of selected HEAT CFM and pump operates at maximum speed until
the thermostat is satisfied.

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PERFORMANCE RATINGS
ES50LVP
Performance Data - Hot Water Capacities (BTUH) @ 70°F Entering Air Temperature
WATER PD
(FT-WG)
@140°F
ecosmart
Air Pressure Drop: 0.04 IWC
ES50LVP
Entering Water Temperature
CFM
GPM
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
300
3
10,640
13,320
16,010
18,700
21,400
24,100
26,800
29,500
4.38
4
10,910
13,650
16,400
19,160
21,910
24,670
27,430
30,190
4.83
5
11,070
13,850
16,640
19,430
22,220
25,020
27,820
30,610
7.23
400
3
13,170
16,510
19,850
23,200
26,550
29,910
33,270
36,640
4.38
4
13,640
17,080
20,530
23,980
27,440
30,900
34,370
37,840
4.83
5
13,920
17,430
20,940
24,460
27,990
31,510
35,040
38,570
7.23
500
3
15,370
19,260
23,170
27,090
31,020
34,950
38,890
42,840
4.38
4
16,050
20,100
24,170
28,250
32,330
36,420
40,520
44,620
4.83
5
16,470
20,630
24,790
28,970
33,150
37,340
41,530
45,720
7.23
600
3
17,280
21,660
26,070
30,490
34,920
39,360
43,810
48,260
4.38
4
18,190
22,800
27,420
32,050
36,700
41,350
46,010
50,670
4.83
5
18,770
23,510
28,270
33,040
37,810
42,600
47,390
52,180
7.23
700
3
18,950
23,780
28,620
33,480
38,360
43,250
48,140
53,040
4.38
4
20,110
25,210
30,330
35,470
40,620
45,770
50,940
56,110
4.83
5
20,850
26,130
31,420
36,730
42,050
47,380
52,710
58,050
7.23
800
3
20,440
25,650
30,880
36,140
41,410
46,690
51,980
57,280
4.38
4
21,840
27,390
32,960
38,550
44,150
49,770
55,390
61,020
4.83
5
22,740
28,510
34,300
40,100
45,920
51,740
57,580
63,420
7.23
900
3
21,760
27,310
32,900
38,500
44,120
49,760
55,410
61,070
4.38
4
23,400
29,360
35,340
41,340
47,360
53,390
59,430
65,490
4.83
5
24,480
30,690
36,930
43,190
49,460
55,750
62,040
68,340
7.23

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ES90LVP
Performance Data - Hot Water Capacities (BTUH) @ 70°F Entering Air Temperature
WATER PD
(FT-WG)
@140°F
ecosmart
Air Pressure Drop: 0.16” WC
ES90LVP
Entering Water Temperature
CFM
GPM
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
600
3
18,820
23,580
28,360
33,150
37,950
42,750
47,560
52,380
4.05
4
19,770
24,760
29,770
34,780
39,810
44,830
49,870
54,900
4.19
5
20,360
25,490
30,640
35,790
40,950
46,120
51,280
56,450
6.27
700
3
20,770
26,030
31,310
36,610
41,920
47,230
52,550
57,880
4.05
4
21,990
27,560
33,140
38,730
44,320
49,930
55,540
61,160
4.19
5
22,770
28,510
34,280
40,050
45,830
51,620
57,410
63,210
6.27
800
3
22,500
28,210
33,940
39,690
45,450
51,220
57,000
62,780
4.05
4
24,010
30,090
36,190
42,310
48,430
54,570
60,710
66,860
4.19
5
24,980
31,290
37,620
43,960
50,320
56,680
63,050
69,420
6.27
900
3
24,040
30,150
36,290
42,450
48,610
54,790
60,980
67,180
4.05
4
25,850
32,400
38,980
45,570
52,180
58,800
65,420
72,050
4.19
5
27,010
33,850
40,710
47,580
54,460
61,360
68,260
75,160
6.27
1,000
3
25,430
31,900
38,400
44,920
51,460
58,000
64,560
71,130
4.05
4
27,530
34,520
41,530
48,560
55,610
62,670
69,740
76,810
4.19
5
28,900
36,220
43,560
50,920
58,300
65,690
73,080
80,480
6.27
1,100
3
26,680
33,470
40,300
47,150
54,020
60,900
67,790
74,690
4.05
4
29,070
36,450
43,870
51,300
58,760
66,220
73,700
81,190
4.19
5
30,640
38,410
46,210
54,020
61,860
69,700
77,560
85,420
6.27
1,200
3
27,810
34,900
42,020
49,170
56,330
63,520
70,710
77,910
4.05
4
30,480
38,240
46,020
53,830
61,650
69,500
77,350
85,210
4.19
5
32,260
40,450
48,670
56,910
65,170
73,440
81,720
90,010
6.27
1,300
3
28,830
36,190
43,580
51,000
58,440
65,890
73,360
80,840
4.05
4
31,790
39,880
48,000
56,150
64,330
72,520
80,720
88,930
4.19
5
33,770
42,350
50,960
59,600
68,250
76,920
85,610
94,300
6.27

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SPECIFICATIONS
PHYSICAL DATA - INCHES
Model
Overall Dimensions
W x D x H
Supply
Opening
W x D
Side Return
Piping
Location
A
B
C
D
E
F
G
H
I
J
K
ES50LVS
14.0
21.0
29.0
11.8
17.8
18.3
14.3
1.4
2.0
2.8
2.4
ES90LVS
21.0
21.0
29.0
18.8
17.8
18.3
14.3
1.4
2.0
2.8
2.4

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MODEL
ES50LVP
ES90LVP
DX Cooling Capacity (tons)
1 to 2
1.5 to 3.5
Power (Volts/Phase/Hz)
120/1/60
120/1/60
Cabinet Size W x D x H (in)
14 x 21 x 29
21 x 21 x 29
Supply Air Opening W x D (in)
11.8 X 17.8
18.8 x 17.8
Side Return Air Opening (in)
18.3 X 14.3
18.3 X 14.3
Recommended Filter Size (in)
16 x 20
16 x 20
Shipping Weight (lb)
85
95
Shipping Dimensions W x D x H (in)
15 x 24 x 30.5
22 x 24 x 30.5
ES50LVP ECM blower performance (amps)
CFM
0.1” WC
0.2” WC
0.3”WC
0.4”WC
0.5”WC
300
0.30
0.46
0.69
0.82
1.04
400
0.54
0.65
0.82
0.85
1.13
500
0.66
0.77
0.95
1.20
1.41
600
0.90
0.92
1.29
1.49
1.67
700
1.01
1.35
1.44
1.77
2.02
800
1.55
1.59
1.76
2.11
2.45
900
1.86
1.88
2.12
2.40
2.80
ES90LVP ECM blower performance (amps)
CFM
0.1” WC
0.2” WC
0.3”WC
0.4”WC
0.5”WC
600
0.94
0.99
1.26
1.58
1.95
700
1.22
1.31
1.65
2.05
2.34
800
1.53
1.58
2.12
2.2
2.88
900
1.62
2.34
2.44
2.76
3.07
1000
2.43
2.91
3.28
3.90
4.26
1100
2.85
3.28
3.83
4.04
4.44
1200
3.57
3.82
4.44
4.83
4.46
1300
4.70
5.05
5.32
6.22
6.43