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AIR VENT AND WATER PURGE VALVES

1.  After connecting the water inlet and outlet pipes to the main supply lines turn on the main breaker and operate 

the unit in COOLING mode. The high-wall unit should be mounted on a solid wall.

2.  Open the water inlet valve and flood the coil.
3.  Check all connections for water leakage. If no leak is found, open the purging valve with an open end wrench while 

supporting the unit with your other hand then purge the air trapped inside the coil. When performing this activity, 
take care not to touch the electrical parts.

4.  Close the purging valve when no bubbles appear.
5.  Open the water outlet valve.

MOUNTING DETAIL

Select the location for the high-wall unit with the following considerations:
1.  The air inlet and outlet area should be clear without obstructions. The air should flow freely.
2.  The high-wall unit should be mounted on a solid wall.
3.  The location should allow easy access to connect water pipes easily to achieve drainage.
4.  Ensure the clearance around the fan coil unit conforms to the following drawing.

 

Notes for above diagram:

 

• 

Required clearance for maintenance and servicing is as shown above.

 

• 

All dimensions shown in mm.

 
5.  The unit should be installed higher than eye level.
6.  Avoid installing the unit where it will be in direct sunlight.
7.  The signal receiver on the unit must be kept away from any high frequency emission source.
8.  Keep the unit away from fluorescent lamps, which may affect the control system.
9.  Avoid electromagnetic control system interference, ensure control wires are installed separately from 110-240 VAC
 

power supply wires.

10.  Use shielded sensor cables where electromagnetic waves are present.
11.  If electrical noise is present, the use of an approved electrical noise filter is suggested.
 

Figure 10: Clearance

3-15/16in 

(100mm)

3-15/16in 

(100mm)

3-

3/16in 

(80mm

)

Higher than eye-level

(All dimensions are approximate within 1/16 of an inch of those indicated.)

Figure 11: Suspension bolts layout 

MOUNTING PLATE

 

DIMENSIONS

SWFC-30

OPERATING LIMITS

Power Supplies

Volt

Phase

Hz

Model

208-240

1

60

SWFC

Water Circuit

Minimum entering water temperature

+35.6°F (2°C)

Maximum entering water temperature

+176°F (80°C)

Coil tested maximum pressure

435 PSI (3000 kPa)

(All dimensions are approximate within 1/16 of an inch of those indicated.)

SWFC-4/18

All dimenions in inches (millimeters)

30-15/16 (786)

15-1/4 (387)

7/16 (11)

1-3/16 (30)

2 (51)

1

(13)

2 (51)

2 (51)

2 (51)

3/8 
(10)

3/8 
(10)

2-3/4 

(70)

3/16 

(5)

6-1/8 

(156)

3-1/8 

(79)

7-3/8 

(187)

10-1/16 

(256)

1-3/8 (35)

13-1/2 (343)

13/16 (21)

9-1/16 (230)

4-1/2 

(114)

1-3/16 (30)

35-5/8 (905)

16-5/16 (414)

9-1/16 (230)

7-11/16 

(195)

9-5/8 

(244)

1-11/16 

(43)

10-1/4 (260)

1-1/8 (29)

3/8 
(10)

1-3/16 (30)

2-1/2 

(64)

1-

3/16

 

(30
)

14-7/8 (378)

6-1/16 

(154)

3-9/16 

(90)

1-9/16 

(40)

5-13/16 (152)

6-5/8 (168)

Table 8: Operating limits

2 3

2 2

Summary of Contents for ISOSTREAM SWFC

Page 1: ...surna com Model SWFC August 2021 ISOSTREAM SURNA WALL FAN COIL OPERATING AND MAINTENANCE MANUAL...

Page 2: ...g 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 Qual...

Page 3: ...2 590 3 7 20 001 5 9 Sensible Cooling Capacity 2 745 0 8 8 686 2 5 13 687 4 Heating Max Electric Heater Capacity 220V kW N A 1 N A 1 N A 1 5 Sound Sound Pressure Level dB A 33 49 50 Sound Power Level...

Page 4: ...20 2 52 6 45 7 39 1 50 7 47 2 38 1 1250 0 Hz 25 0 21 0 19 6 49 1 43 9 35 0 50 3 47 4 37 7 1600 0 Hz 23 3 22 4 20 7 47 1 39 4 31 3 46 9 42 3 31 9 2000 0 Hz 20 6 20 0 19 4 44 4 36 8 28 0 46 1 41 6 29 3...

Page 5: ...This High Wall Unit is designed to meet demanding requirements for efficiency quiet operation and appearance The sleek profile and elegantly styled cabinet complements any interior design theme while...

Page 6: ...ath serious injury if warning isn t heeded DANGER Risk of death serious injury if danger isn t avoided SAFETY SYMBOLS USED CAUTION Important information read the provided instructions carefully WARNIN...

Page 7: ...ental conditions abuse or improper use improper installation commissioning by a party other than Company unusual physical electrical or mechanical stress lack of proper startup or maintenance as recom...

Page 8: ...nections are made WARNING This unit must be connected to a protective grounding system All wiring shall comply with local and national codes Before attempting system installation verify that the elect...

Page 9: ...by customer requirement I O Port Code 2 Pipe Analog Input Chilled water sensor AI1 Coil sensor Ti1 Power Input High speed Hi 24VAC input signals from wired thermostat Medium speed Med Low speed Lo EH...

Page 10: ...0 EH relay is turned OFF at once and an error code is reported LOW TEMPERATURE PROTECTION OF INDOOR COIL IN WINTER This is frost protection when the unit is off to prevent water in the coil and the un...

Page 11: ...RAIN PUMP AND INSTALLATION FIXTURE OPTIONAL Upon request the metal bracket for fixing the drain pump and drain pump kits can be offered Please consult our sales representatives for these optional acce...

Page 12: ...sunlight 7 The signal receiver on the unit must be kept away from any high frequency emission source 8 Keep the unit away from fluorescent lamps which may affect the control system 9 Avoid electromagn...

Page 13: ...an Failure to provide periodic check ups and cleaning can result in excessive operating cost and or equipment failure CONTACT US Contact Surna via email at support surna com or via phone at 303 993 52...

Page 14: ...rizontal louver to the horizontal position 2 Remove the screw caps below the louver and then remove the mounting screws red circles in below picture 3 Open the lift up grille cover by grasping the pan...

Page 15: ...surna com 303 993 5271 info surna com P E All data subject to change without notice...

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