Surna ENVIROPRO SHAU Operating instructions

Surna.com
Models: SHAU
May 2021
ENVIROPRO™
SURNA MINI AIR
HANDLER UNIT
OPERATING AND MAINTENANCE MANUAL

INVESTING IN QUALITY, RELIABILITY & PERFORMANCE
World Leading Design and Technology
Every product is manufactured to meet the stringent requirements of the internationally
recognized ISO 9001 standard for quality assurance in design, development and
production. Equipped with the latest air-conditioning test rooms and manufacturing
technology, our fan coil units are produced conforming to the highest international
standards of quality and safety.
The Highest Standards of Manufacturing
All products conform to UL standard for Safety for Heating and Cooling Equipment
UL1995 4th Edition, October 14, 2011; all products conform to CSA standard for Safety for
Heating and Cooling Equipment CSA C22.2 No.236-11, 4th Edition, October 14 2011.
In order to guarantee the very highest standards and performance, every stage in the
manufacturing of our products are managed. Throughout the production process strict
control is maintained, starting with extensive resources in research and development
through to the design and manufacture of almost every individual component, from
molded plastics to the assembly of the units and controllers.
Quality Controlled from Start to Finish
All products conform to the “WEEE” directive to guarantee correct standards of
environmental solutions.
Highly trained sta and strict quality control methods enable the production of products
with an exceptional reputation for reliability and eciency, maintained over many years.
As well as full CE certification and ISO 9001, several products ranges have UL / ETL safety
approvals, Eurovent performance and sound certification as well as ROHS compliance
for Europe, giving you the confidence of knowing our company is the right choice when
selecting fan coil units.
ALWAYS MAKE SURE THIS MANUAL REMAINS WITH THE UNIT. READ THIS MANUAL
BEFORE PERFORMING ANY OPERATION ON THE UNIT.
ETL SAFETY STANDARDS
WEEE MARK
ISO 9001 QUALITY

TABLE OF CONTENTS
Specifications 5
Technical Description 18
Warnings 20
Warranty Information 22
Installation Instructions 23
Dimensions 30
Routine Maintenance 33
Troubleshooting 35
3

MODEL CODE NOMENCLATURE
L Left side
SHAU(XR) - XXX - XX - AECM - X - L
AECM EC motor configuration
P 4-Pipe
V 2-Pipe
200 Unit sizes, see general
specifications section for
cooling and heating
capacities.
400
600
800
SHAU
(6R+1)
Surna Mini Air Handler
6 row cooling/1 row heating
(4-pipe)
SHAU
(4R+2)
Surna Mini Air Handler
4 row cooling/2 row heating
(4-pipe)
SHAU
(4R+1)
Surna Mini Air Handler
4 row cooling/1 row heating
(4-pipe)
SHAU
(4R)
Surna Mini Air Handler
4 row cooling (2-pipe)
SHAU
(6R)
Surna Mini Air Handler
6 row cooling (2-pipe)
X 220V/1Ph/60Hz
W
Flexible function onboard
PCB with zone control
functionality.
S
Complete function
onboard PCB with
integrated group control
functionality.
4

SPECIFICATIONS
SHAU(4R)XXXVXAECMXL
Note:
a. Cooling conditions:
Air temperature: 80°F DB/67°F WB (27°C DB/19°C WB).
Water inlet/outlet: 45°F/55°F (7°C/12°C).
b. All dimensions are approximate within 1/16 of an inch
of those indicated.
Table 1: SHAU(4R) specifications
2PIPE SYSTEMS
4-Row Cooling
Size 200 400 600 800
Unit
Configuration
Configuration 2 pipes
Number of fan blowers 1 2
Power supply (V/Ph/Hz) 220/1/60
Performance Data
Air
Air Flow CFM
(m/h) 1321 (2244) 2417 (4107) 3739 (6353) 4835 (8215)
External Static Pressure
for Above CFM
in.wg
(Pa) 0.5 (124.42)
Cooling
Total Cooling Capacity BTU/Hr
(kW)
53347 (15.63) 95657 (28.03) 143556 (42.07) 182100 (53.34)
Sensible Cooling
Capacity 35453 (10.39) 63881 (18.72) 96176 (28.19) 122522 (35.91)
Sound
Sound Pressure Level
(Outlet) dB(A)
67 74 75 77
Sound Power Level
(Outlet) 76 83 84 86
Electrical
Max. Power Input W 375 500 1000
Full Load Amps (FLA)
@ 220V
A
1.63 2.17 4.34
Min. Circuit Ampacity
(MCA) 2.04 2.71 5.43
Max. Overcurrent
Protection (MOP) 15
Hydronic
Cooling Water Flow Rate GPM
(L/h) 10.5 (2385) 18..9 (4293) 28.4 (6450) 36.0 (8176)
Cooling Pressure Drop Ft/Head
(kPa) 6.1 (18.23) 7.1 (21.22) 15.9 (47.51) 12.5 (37.35)
Water Content Gal (L) 1.6 (6.06) 2.4 (9.08) 2.8 (10.6) 3.3 (12.49)
Physical Data
Water Connections In
Inch
(mm)
1-1/4 (31.75)
Out
Condensate Drainage
Connection 1 (25.4)
Dimensions
L
Refer to Dimensions section (Pg. 30-32)
W
H
Net Weight lbs (kg) 330 (149.69) 410 (185.97) 490 (22.26) 560 (254.01)
5

SHAU(6R)XXXVXAECMXL
Note:
a. Cooling conditions:
Air temperature: 80°F DB/67°F WB (27°C DB/19°C WB).
Water inlet/outlet: 45°F/55°F (7°C/12°C).
b. All dimensions are approximate within 1/16 of an inch
of those indicated.
Table 2: SHAU(6R) specifications
2PIPE SYSTEMS
6-Row Cooling
Size 200 400 600 800
Unit
Configuration
Configuration 2 pipes
Number of fan blowers 1 2
Power supply (V/Ph/Hz) 220/1/60
Performance Data
Air
Air Flow CFM
(m/h) 1209 (2054) 2341 (3977) 3577 (6077) 4683 (7957)
External Static Pressure
for Above CFM
in.wg
(Pa) 0.5 (124.42)
Cooling
Total Cooling Capacity BTU/Hr
(kW)
54859 (16.07) 107061 (31.38) 148861 (43.63) 198866 (58.28)
Sensible Cooling
Capacity 35709 (10.47) 69539 (20.38) 98948 (29) 131553 (38.55)
Sound
Sound Pressure Level
(Outlet) dB(A)
67 74 75 77
Sound Power Level
(Outlet) 76 77 78 80
Electrical
Max. Power Input W 375 500 100
Full Load Amps (FLA)
@ 220V
A
1.63 2.17 4.34
Min. Circuit Ampacity
(MCA) 2.04 2.71 5.43
Max. Overcurrent
Protection (MOP) 15
Hydronic
Cooling Water Flow Rate GPM
(L/h) 10.8 (2453) 21.1 (4792) 29.4 (6678) 39.3 (8926)
Cooling Pressure Drop Ft/Head
(kPa) 3.2 (9.57) 12.9 (38.55) 3.8 (113.56) 7.2 (21.52)
Water Content Gal (L) 2.4 (9.09) 3.6 (13.63) 4.2 (15.99) 5.0 (18.93)
Physical Data
Water Connections In
Inch
(mm)
1-1/4 (31.75)
Out
Condensate Drainage
Connection 1 (25.4)
Dimensions
L
Refer to Dimensions section (Pg. 30-32)
W
H
Net Weight lbs (kg) 353 (160.12) 445 (201.85) 530 (240.40) 600 (272.16)
6

SHAU(4R+1)-XXXPXAECMXL
Note:
a. Cooling conditions:
Air temperature: 80°F DB/67°F WB
(27°C DB/19°C WB).
Water inlet/outlet: 45°F/55°F
(7°C/12°C).
b. Heating conditions:
Air temperature: 70°F (21°C).
Water inlet/outlet temperature:
180°F /140°F (82°C/60°C).
c. All dimensions are approximate
within 1/16 of an inch of those
indicated.
Table 3: SHAU(4R+1) specifications
4PIPE SYSTEMS
4-Row Cooling + 1-Row Heating
Size 200 400 600 800
Unit
Configuration
Configuration 4 pipes
Number of fan blowers 1 2
Power supply (V/Ph/Hz) 220/1/60
Performance Data
Air
Air Flow CFM
(m/h) 1265 (2149) 2379 (4042) 3658 (6215) 44759 (76046)
External Static Pressure in.wg
(Pa) 0.5 (124.42)
Cooling
Total Cooling Capacity
BTU/Hr
(kW)
51867 (15.2) 94241 (27.62) 141477 (41.46) 179405 (52.58)
Sensible Cooling
Capacity 34427 (10.09) 62892 (18.43) 94721 (27.76) 120626 (35.35)
Heating
Heating Capacity 48591 (14.24) 85942 (25.19) 123502 (36.19) 157284 (46.1)
Sound
Max. sound pressure dB(A) 67 74 75 77
Max. sound power 76 83 84 86
Electrical
Max. power input W 375 500 1000
Full Load Amps (FLA)
@ 220V
A
1.63 2.17 4.34
Min. Circuit Ampacity
(MCA) 2.04 2.71 5.43
Max. Overcurrent
Protection (MOP) 15
Hydronic
Cooling Water Flow Rate GPM
(L/h) 10.2 (2317) 18.6 (4225) 27.9 (6337) 35.4 (8040)
Cooling Pressure Drop Ft/Head
(kPa) 5.8 (17.33) 6.9 (20.62) 15.5 (46.32) 12.2 (36.46)
Heating Water Flow Rate GPM
(L/h) 2.4 (545) 4.3 (977) 6.2 (1408) 7.8 (1772)
Heating Pressure Drop Ft/Head
(kPa) 3.2 (9.56) 1.7 (5.08) 3.6 (10.76) 2.0 (59.77)
Cooling Water Content
Gal (L)
1.6 (60.57) 2.4 (9.08) 2.8 (10.6) 3.3 (12.49)
Heating Water Content 0.4 (1.51) 0.6 (2.27) 0.7 (2.65) 0.9 (3.41)
Physical Data
Cooling Water
Connections
In
Inch
(mm)
1-1/4 (31.75)
Out
Heating Water
Connections
In 1 (25.4)
Out
Condensate Drainage
Connection 1 (25.4)
Dimensions
L
Refer to Dimensions section (Pg. 30-32)
W
H
Weight lbs (kg) 340 (154.22) 430 (195.05) 510 (231.33) 580 (263.08)
7

SHAU(4R+2)-XXXPXAECMXL
Note:
a. Cooling conditions:
Air temperature: 80°F DB/67°F WB
(27°C DB/19°C WB).
Water inlet/outlet: 45°F/55°F
(7°C/12°C).
b. Heating conditions:
Air temperature: 70°F (21°C).
Water inlet/outlet temperature:
180°F /140°F (82°C/60°C).
c. All dimensions are approximate
within 1/16 of an inch of those
indicated.
Table 4: SHAU(4R+2) specifications
Size 200 400 600 800
Unit
Configuration
Configuration 4 pipes
Number of fan blowers 1 2
Power supply (V/Ph/Hz) 220/1/60
Performance Data
Air
Air Flow CFM
(m/h) 1209 (2054) 2341 (3977) 3577 (6077) 4683 (7956)
External Static Pressure in.wg
(Pa) 0.5 (124.42)
Cooling
Total Cooling Capacity
BTU/Hr
(kW)
50016 (14.66) 93533 (27.41) 138359 (40.55) 178057 (52.18)
Sensible Cooling
Capacity 33145 (9.71) 62398 (18.29) 92539 (27.12) 119678 (35.07)
Heating
Heating Capacity 71129 (20.85) 131312 (38.48) 190464 (55.82) 246499 (72.24)
Sound
Max. sound pressure dB(A) 67 74 75 77
Max. sound power 76 83 84 86
Electrical
Max. power input W 412 765 1300 1530
Full Load Amps (FLA)
@ 220V
A
1.63 2.17 4.34
Min. Circuit Ampacity
(MCA) 2.04 2.71 5.43
Max. Overcurrent
Protection (MOP) 15
Hydronic
Cooling Water Flow Rate GPM
(L/h) 9.9 (2249) 18.5 (4202) 27.3 (6201) 35.2 (7995)
Cooling Pressure Drop Ft/Head
(kPa) 5.4 (16.14) 6.8 (20.32) 14.9 (44.53) 12.0 (35.86)
Heating Water Flow Rate GPM
(L/h) 3.5 (795) 6.5 (1476) 9.5 (2158) 12.3 (2794)
Heating Pressure Drop Ft/Head
(kPa) 1.9 (5.68) 1.0 (2.99) 2.3 (6.87) 1.3 (3.88)
Cooling Water Content
Gal (L)
1.6 (6.06) 2.4 (9.09) 2.8 (10.6) 3.3 (12.49)
Heating Water Content 0.8 (3.03) 1.2 (4.54) 1.4 (5.3) 1.7 (6.44)
Physical Data
Cooling Water
Connections
In
Inch
(mm)
1-1/4 (31.75)
Out
Heating Water
Connections
In 1 (25.4)
Out
Condensate Drainage
Connection 1 (25.4)
Dimensions
L
Refer to Dimensions section (Pg. 30-32)
W
H
Weight lbs (kg) 353 (160.12) 445 (201.85) 530 (240.40) 600 (272.16)
4PIPE SYSTEMS
4-Row Cooling + 2-Row Heating
8

SHAU(6R+1)-XXXPXAECMXL
Note:
a. Cooling conditions:
Air temperature: 80°F DB/67°F WB
(27°C DB/19°C WB).
Water inlet/outlet: 45°F/55°F
(7°C/12°C).
b. Heating conditions:
Air temperature: 70°F (21°C).
Water inlet/outlet temperature:
180°F /140°F (82°C/60°C).
c. All dimensions are approximate
within 1/16 of an inch of those
indicated.
Table 5: SHAU(6R+1) specifications
4PIPE SYSTEMS
6-Row Cooling + 1-Row Heating
Size 200 400 600 800
Unit
Configuration
Configuration 4 pipes
Number of fan blowers 1 2
Power supply (V/Ph/Hz) 220/1/60
Performance Data
Air
Air Flow CFM
(m/h) 1153 (1959) 2303 (3913) 3497 (5941) 4607 (7827)
External Static Pressure in.wg
(Pa) 0.5 (124.42)
Cooling
Total Cooling Capacity
BTU/Hr
(kW)
52828 (15.48) 105441 (30.9) 146624 (42.97) 195855 (57.4)
Sensible Cooling
Capacity 34293 (10.05) 68369 (20.04) 97345 (28.53) 129338 (37.91)
Heating
Heating Capacity 45256 (13.26) 83881 (24.58) 119615 (35.06) 153513 (44.99)
Sound
Max. sound pressure dB(A) 67 74 75 77
Max. sound power 76 83 84 86
Electrical
Max. power input W 375 500 1000
Full Load Amps (FLA)
@ 220V
A
1.63 2.17 4.34
Min. Circuit Ampacity
(MCA) 2.04 2.71 5.43
Max. Overcurrent
Protection (MOP) 15
Hydronic
Cooling Water Flow Rate GPM
(L/h) 10.4 (2362) 20.8 (4724) 29.0 (6587) 38.7 (8790)
Cooling Pressure Drop Ft/Head
(kPa) 3.0 (8.96) 12.6 (37.65) 3.7 (11.06) 7.0 (20.92)
Heating Water Flow Rate GPM
(L/h) 2.3 (522) 4.2 (954) 6.0 (1363) 7.7 (1749)
Heating Pressure Drop Ft/Head
(kPa) 2.9 (8.67) 1.6 (4.78) 3.4 (10.16) 1.9 (5.68)
Cooling Water Content
Gal (L)
2.4 (9.08) 3.6 (13.63) 4.2 (15.9) 5.0 (18.93)
Heating Water Content 0.4 (1.51) 0.6 (2.27) 0.7 (2.65) 0.9 (3.41)
Physical Data
Cooling Water
Connections
In
Inch
(mm)
1-1/4 (31.75)
Out
Heating Water
Connections
In 1 (25.4)
Out
Condensate Drainage
Connection 1 (25.4)
Dimensions
L
Refer to Dimensions section (Pg. 30-32)
W
H
Weight lbs (kg) 365 (165.56) 460 (208.65) 550 (249.47) 620 (281.23)
9

COOLING CAPACITY - 1000 BTU/Hr (0.29 kW)
SHAU(4R)
Size
NOMINAL
AIR FLOW
45°F (7.2°C) ENTERING WATER TEMPERATURE
FLOW RATE PD 80°F DB/50% RH
(26.7°C DB/50% RH)
75°F DB/50% RH
(23.9°C DB/50% RH)
CFM (m/h) GPM (L/h) Ft/Head
(kPa)
TH SH TR TH SH TR
MBH (kW) MBH (kW) °F (°C) MBH (kW) MBH (kW) °F (°C)
200 1321
(2244)
7 (1589.9) 2.9 (8.67) 44.9 (13.16) 30.8 (9.03) 12.7 (-10.7) 35.4 (10.37) 27.6 (8.09) 10.0 (-12.2)
9 (2044.1) 4.6 (13.75) 48.2 (14.13) 32.6 (9.56) 10.6 (-11.9) 37.4 (10.96) 28.4 (8.32) 8.2 (-13.2)
11 (2498.4) 6.6 (19.72) 50.6 (14.83) 33.7 (9.88) 9.1 (-12.7) 39.2 (11.49) 29.1 (8.53) 7.1 (-13.8)
400 2417
(4107)
9 (2044.1) 1.9 (5.68) 71.1 (20.84) 50.6 (14.83) 15.7 (-9.1) 57.5 (16.85) 45.7 (13.39) 12.7 (-10.7)
11 (2498.4) 2.7 (8.07) 77.5 (22.71) 53.9 (15.8) 14.0 (-10) 61.4 (17.99) 48.5 (14.21) 11.1 (-11.6)
13 (2952.6) 3.6 (10.76) 82.1 (24.06) 56.3 (16.5) 12.5 (-10.8) 64.2 (18.82) 50.3 (14.74) 9.8 (-12.3)
600 3739
(63.53)
13 (2952.6) 3.9 (11.65) 103.6 (30.36) 74.7 (21.89) 17.1 (-8.3) 85.1 (24.94) 68.0 (19.93) 13.0 (-10.6)
15 (3406.9) 5.1 (15.24) 110.4 (32.36) 78.1 (22.89) 15.8 (-9) 89.5 (26.23) 71.0 (20.81) 11.8 (-11.2)
17 (3861.1) 6.3 (18.83) 117.3 (34.38) 81.7 (23.94) 13.7 (-10.2) 92.7 (27.17) 73.3 (21.48) 10.8 (-11.8)
800 4835
(8215)
15 (3406.9) 2.6 (7.77) 126.4 (37.04) 92.7 (27.17) 17.9 (-7.8) 104.0 (30.48) 84.4 (24.74) 13.8 (-10.1)
17 (3861.1) 3.2 (9.56) 133.9 (39.24) 96.3 (28.22) 16.7 (-8.5) 108.9 (31.92) 87.8 (25.73) 12.7 (-10.7)
19 (4315.4) 4.0 (11.95) 140.7 (41.24) 99.8 (29.25) 14.7 (-9.6) 113.1 (33.15) 90.7 (26.58) 11.8 (-11.2)
COOLING CAPACITY - 1000 BTU/Hr (0.29 kW)
SHAU(4R)
Size
NOMINAL
AIR FLOW
42°F (5.6°C) ENTERING WATER TEMPERATURE
FLOW RATE PD 80°F DB/50% RH
(26.7°C DB/50% RH)
75°F DB/50% RH
(23.9°C DB/50% RH)
CFM (m/h) GPM (L/h) Ft/Head
(kPa)
TH SH TR TH SH TR
MBH (kW) MBH (kW) °F (°C) MBH (kW) MBH (kW) °F (°C)
200 1321
(2244)
6 (1362.7) 2.2 (6.57) 45.4 (13.31) 31.0 (9.09) 15.2 (-9.3) 38.4 (11.25) 28.3 (8.29) 12.8 (-10.7)
8 (1817.0) 3.8 (11.36) 51.2 (15.01) 33.8 (9.91) 12.8 (-10.7) 41.9 (12.28) 30.6 (8.97) 10.5 (-11.9)
10 (2271.2) 5.6 (16.73) 54.6 (16) 35.6 (10.43) 11.0 (-11.7) 44.1 (12.92) 31.6 (9.26) 8.9 (-12.8)
400 2417
(4107)
8 (1817.0) 1.5 (4.48) 71.4 (20.93) 51.1 (14.98) 17.9 (-7.8) 61.4 (17.99) 46.2 (13.54) 15.4 (-9.2)
10 (2271.2) 2.3 (6.87) 80.4 (23.56) 55.3 (16.21) 16.1 (-8.8) 67.7 (19.84) 50.3 (14.74) 13.6 (-10.2)
12 (2725.5) 3.1 (9.26) 86.2 (25.26) 58.1 (17.03) 14.4 (-9.8) 71.8 (21.04) 52.9 (15.5) 12.0 (-11.1)
600 3739
(63.53)
12 (2725.5) 3.4 (10.16) 106.7 (31.27) 76.6 (22.45) 17.8 (-7.9) 91.9 (26.93) 69.3 (20.31) 15.3 (-9.3)
14 (3179.7) 4.5 (13.45) 115.1 (33.73) 80.5 (23.59) 16.5 (-8.6) 98.5 (28.87) 73.5 (21.54) 14.1 (-9.9)
16 (3634.0) 5.7 (17.03) 122.6 (35.93) 84.0 (24.62) 15.3 (-9.3) 103.3 (30.27) 76.7 (22.48) 12.9 (-10.6)
800 4835
(8215)
14 (3179.7) 2.3 (6.87) 128.9 (37.78) 94.6 (27.72) 18.4 (-7.6) 112.7 (33.03) 86.0 (25.2) 16.1 (-8.8)
16 (3634.0) 2.9 (8.67) 138.5 (40.59) 99.1 (29.04) 17.3 (-8.2) 119.0 (34.88) 90.1 (26.41) 14.9 (-9.5)
18 (4088.2) 3.6 (10.76) 147.1 (43.11) 103.1 (30.22) 16.4 (-8.7) 126.1 (36.96) 94.7 (27.75) 14.0 (-10)
Table 6: SHAU(4R) cooling capacity at 45°F (7.2°C) entering water
Table 7: SHAU(4R) cooling capacity at 42°F (5.6°C) entering water
TH= total cooling capacity SH= sensible cooling capacity
TR= water temperature rise PD= water pressure drop
TH= total cooling capacity SH= sensible cooling capacity
TR= water temperature rise PD= water pressure drop
4ROW COIL
COOLING PERFORMANCE
10