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9   

Wiring

WARNING:

 Turn off the breaker until all electrical 

connections are made.  

WARNING: 

This unit must be connected to a 

protective grounding system.

Before attempting system installation, verify that 

the electrical system and wiring are adequate 

for supplying the required ampacity to the air 

handler unit at 120 VAC. Refer to the air handler 

specifications section of this document for the air 

handler ampacity information. Field wiring 

terminals are provided for power and control 

connections. If you aren’t familiar with local 

building codes and standard electrical practices. 

You MUST employ the services of a qualified 

electrician prior to installing and operating the 

equipment. Making improper electrical 

Installation Connections

connections could cause damage to the 

equipment or servicing personnel. When installing 

the power wiring, verify that the line conductor is 

connected to the terminal marked “L”, and the 

Neutral conductor is connected to the terminal 

marked “N”. 

A thermostat was provided installed on your unit. 

If you elect to use an alternate thermostat or 

control device, you can remove the pre-installed 

thermostat and easily install an alternate. With 

power removed from the air handler unit at the 

breaker or main disconnect, remove the cover 

of the electrical box using a screwdriver. Once 

open, disconnect the thermostat leads from 

the low voltage terminal block. Using the same 

routing as the factory installed thermostat, wire 

the new control device into the terminal blocks 

“COM” and “SW1” terminals.

Installation Connections

A – Ground Terminal

B – Line Terminal

C – Neutral Terminal

D – Thermostat Control Terminal Block

A

B

C

D

Содержание Surna IsoStream SCMAHV-42

Страница 1: ...Surna IsoStreamTM Air Handler Operating Maintenance Manual www surna com 303 993 5271 Models SCMAHV 42 Revised September 2015 ...

Страница 2: ......

Страница 3: ...mer 4 Product Suitability 4 Service Under Warranty 4 Service NOT Under Warranty 4 Parts List 5 Routine Maintenance 5 Warnings 6 Safety Symbols 6 Air Handler Safety Guide 6 Installation Instructions 8 Mechanical 8 Electrical 8 Wiring 9 Plumbing 10 Plumbing Tips 11 System Specifications 12 Wiring Diagram 14 ...

Страница 4: ... product is installed or used Before purchase and use of a product review the product applications and all applicable national and local codes and be sure that the product installation and use will comply with them Service Under Warranty This product is warranted by Surna against defects due to fault in workmanship or materials If the product has been damaged under normal use it will be entitled t...

Страница 5: ... provide many years of dependable trouble free comfort when properly maintained Proper maintenance will consist of routine heat exchanger cleanings biannual check ups that include but are not limited to heat exchanger inspections electric heater inspections cleaning of the internal electrical and heat transfer components by a qualified service technician Failure to provide periodic check ups and c...

Страница 6: ...ure wire and cable routing to protect personnel from shock hazards Only operate the equipment with an appropriately sized breaker in place and wire sizes with adequate current carrying capacity Consult with an electrician before attempting electrical installation Using Surna Air Handler equipment in a manner not described in this manual may void its warranty and any safeties provided herein Follow...

Страница 7: ...rotective earthing system prior to operation DO NOT remove the grounded connection while power is being supplied to the Surna air handling equipment Doing so presents an electric shock hazard to users and service personnel Care must be taken to ensure the structural integrity of the supporting members when mounting these devices Verify that the load bearing capacity of any mounting surface is rate...

Страница 8: ...cing of the unit Ensure that a minimum of 24 of clearance be provided around all lateral edges of the air handler unit and that adequate space is available to facilitate servicing of the electrical box coil connections and condensate drain A dust shroom dust cover was provided with your air handler unit To install the equipment should be de energized at the breaker or main disconnect Attach the du...

Страница 9: ...lation Connections connections could cause damage to the equipment or servicing personnel When installing the power wiring verify that the line conductor is connected to the terminal marked L and the Neutral conductor is connected to the terminal marked N A thermostat was provided installed on your unit If you elect to use an alternate thermostat or control device you can remove the pre installed ...

Страница 10: ...e supplied to each air handler is 2 5 gallons per minute per ton of air handler capacity The unit will operate most efficiently with higher flow rates while low flow rates will not provide enough cooling for the unit to perform optimally The air handler s condensate drain has a built in slope for proper drainage It is important to verify that the air handler mounting surface is level so that the e...

Страница 11: ...r requires 12 5 GPM to operate efficiently A higher flow rate in this range will increase the cooling efficiency of the unit Important Plumbing Tips 8 The air handler water inlet and outlets are NPT 9 The air handler is marked with IN and OUT water connections for proper direction of flow The unit will not operate properly if these connections are reversed 11 Propylene Glycol should be utilized at...

Страница 12: ...12 System Specifications Dimensional and Electrical Data Elevation and Glycol Derating ...

Страница 13: ...13 Cooling Data ...

Страница 14: ... 1 TB1 Low Voltage Terminal Block L1 Phase Conductor Connection L2 Neutral Conductor Connection GND Ground Connection Primary Circuit Conductors Class 2 Secondary Circuit Conductors Thermostat Switch Connections 120 VAC T1 24 VAC FM L1 L2 GND BLK WHT BLK WHT RD GRN GRN C1 SO1 TB1 Use Only Copper Supply Wires ...

Страница 15: ...15 ...

Страница 16: ...303 993 5271 info surna com surna com 1780 55th Street Suite A Boulder CO 80301 ...

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