BrewBlast™ 40PPH & 70CPH Installation & Startup – South-Tek Systems

Applies to: BrewBlast™ 40PPH, BrewBlast™ 70CPH

Does NOT apply to: BrewBlast™ 110CPH — see BrewBlast™ 110CPH – Installation & Initial Startup

This article covers the complete installation and startup sequence for the BrewBlast™ 40PPH and 70CPH nitrogen generators. Complete all steps in order before placing the system into service. Only qualified technicians should perform installation.

⚠ WarningRead all safety guidelines in the BrewBlast™ Product Overview before beginning installation. Do not connect power until all plumbing connections are complete and the compressor shipping bolts have been removed (see Step 1).

Step 1 — Unpacking and Inspection

Carefully open the cardboard shipping box and inspect all components for damage. Verify all items on the packing list are present.
Document any visible shipping damage immediately and report it to the shipping carrier. After notifying the carrier, contact South-Tek Systems at (910) 415-1880 to assess the damage before proceeding.
Keep the unit upright at all times. Do not lay it on its side.
Keep all gas lines capped and dry until connections are made — moisture entering the generator on hookup can damage internal components.

⚠ WarningThe compressor is secured with 4 shipping bolts during transit. These bolts must be removed before powering on the unit. Failure to remove them will damage the compressor. Locate and remove all 4 bolts before proceeding.

If the unit will not be installed immediately, store it indoors in a dry, climate-controlled environment between 60–80°F. Do not stack anything on top of the cabinet.

Step 2 — Mounting

The BrewBlast™ 40PPH and 70CPH can be wall-mounted or floor-mounted. Wall mounting on a weight-bearing wall is recommended. If floor-mounted, the unit must be fastened securely so it cannot shift or tip due to compressor vibration.

Installation requirements for all mounting configurations:

Install indoors only, in an environment between 40–85°F.
Keep the unit upright at all times.
Maintain at least 6" of clearance on the left side of the cabinet for ventilation.
Allow 36" of access space in front of the cabinet for the control panel, connections, and front cover removal.
Do not install near heat sources or in areas where steam or standing water may be present.
The 1/4" OD condensate drain port is located at the bottom right of the cabinet — plan drain routing before finalizing the mount location.

Optional Wall Mounting Bracket Kit (A05-TYP1-WH)

The optional bracket kit allows mounting on a standard 16" wall stud layout. For bracket part numbers, see BrewBlast™ 40PPH & 70CPH – Specifications & Components. Install as follows:

All mounting holes — on both the cabinet and the brackets — accept 1/4" screws or anchors.
Install the two cabinet-mounting brackets on the unit first using the supplied bolts and lock nuts. Confirm all brackets are oriented correctly per the installation diagram before tightening.
Mount the 18" wall bracket at the desired height, level, and centered on the planned position. This bracket has 16" center-to-center stud holes for direct-to-stud mounting. Use appropriate hardware for the wall material (wood, sheet metal, masonry).
If wall studs are not at 16" centers or additional reinforcement is needed, install 1/2" or thicker plywood backing before mounting the bracket. Ensure the backing is secured to bear the full system weight under vibration.
Attach the 12" upper cabinet bracket to the top flange using the supplied hardware. Attach the 18" lower bracket to the bottom flange using the supplied carriage bolts and nuts — do not fully tighten yet, as slight offset adjustment may be needed after hanging.
Hang the cabinet from the upper wall bracket, centering it left to right. Confirm at least 4" of clearance on each side for airflow.
Secure the bottom bracket to the wall and tighten all fasteners. Confirm the unit is level and cannot shift.

⚠ WarningThe unit must be secured at both the top and bottom flanges. Mounting at the top only is insufficient and may result in the cabinet shifting or falling due to compressor vibration, causing damage or bodily injury.

Step 3 — Electrical Connection

The BrewBlast™ 40PPH and 70CPH require a 120 or 240V / 50–60Hz / 1-phase supply. A standard 3-prong US power cord is included. The unit has a built-in 20A circuit breaker.

For US installations: plug the supplied power cord into a properly rated wall receptacle.
For non-US installations: use a power cord with an IEC 60320 C-19 connector and a properly rated, grounded plug for the local region.

ℹ NoteDo not connect power until all plumbing connections are complete and verified. Electrical schematics are available from South-Tek Systems upon request.

Step 4 — Plumbing Connections

The BrewBlast™ 40PPH and 70CPH are supplied with 1/4" NPT female inlet and outlet fittings. Use Teflon tape or equivalent thread sealant on all threaded fittings.

Connect the unit to the nitrogen storage tank, then from the tank to the beverage system.
Install an individual on/off ball valve on each gas line. This is required for leak isolation and system troubleshooting.
If the optional McDantim™ gas blender is present, connect the CO₂ supply line to the CO₂ inlet port. CO₂ supply pressure must be between 60–85 PSIG.
Route the two condensate drain lines — located at the bottom right of the cabinet — to a floor drain or collection point. Failure to route these drains can create a slip hazard below the unit.

▲ AttentionNever disconnect a pressurized gas line before closing the upstream valve. Always shut off the valve and remove the tap from the keg before servicing any gas lines. Avoid depressurizing kegs — this negatively affects beverage quality. Line leaks will cause the unit to run excessively, shortening compressor and media life.

Optional N₂ Cylinder Backup

A backup nitrogen cylinder can be connected to maintain system pressure in the event of a generator issue. To install:

Obtain a nitrogen cylinder with a high-pressure regulator and ball valve on the output. Regulate the output to 85 PSIG. A lockable ball valve is recommended; label it "Backup use only" to prevent accidental use.
Connect the backup cylinder to Port 4 on the BrewBlast™ unit. When the backup is opened, it will fill the N₂ storage tank and — if the optional blender is present — keep the blender pressurized with nitrogen.

Step 5 — Startup Procedure

Confirm all shipping bolts have been removed (see Step 1).
Confirm all plumbing connections are made and all downstream ball valves are in the open position.
Turn on the power switch and slowly open the system's main on/off valve.
- You should hear air moving through the system and nitrogen beginning to fill the internal storage tank.
- If you hear a leak or detect a bad connection, close the valve immediately and correct the issue before continuing.
- If a leak is suspected inside the cabinet, remove the front cover and locate the source. Use only factory-supplied parts for any repairs. Contact South-Tek Systems if the source cannot be identified.
Allow the system to fill the storage tank. Monitor the 0–100 PSIG pressure gauge on the cabinet exterior.
Once the storage tank reaches 85 PSIG, the system will enter standby — the green N₂ production indicator will change to amber. The air compressor will also cycle off once the internal air tank reaches cutout pressure. This is normal and prolongs both compressor and media life.
When nitrogen is drawn downstream and tank pressure falls to approximately 62 PSIG, the pressure switch will automatically trigger a return to run mode and recharge the storage tank. The pressure switch is factory-set and requires no field adjustment.

ℹ NoteAfter startup, perform a thorough leak check of all external connections before leaving the site. For the full leak isolation procedure, see BrewBlast™ 40PPH & 70CPH – Checking for Leaks.

Normal System Operation

The unit operates automatically between two modes once powered on:

Mode	Indicator	Description
Run	Green light on	Generator is producing nitrogen and filling the storage tank
Standby	Amber light on	Tank is fully pressurized (60–85 PSIG); generator is idle and will restart automatically when pressure drops 7–10 PSIG

The system is designed for 24-hour operation. Ensure proper downstream regulators, cooler temperatures, and line temperatures are maintained for consistent pour performance. The built-in control timer is factory-programmed — do not attempt to modify the timing settings, as doing so will void the warranty.

Starting and Stopping

For routine operation, the unit does not need to be powered down. The system cycles between run and standby automatically.

To start: turn on the power switch and confirm all downstream gas valves are open.
To stop normally: close the downstream gas line valves. Powering down is not required.
For emergency shutdown: turn off the power switch on the side of the control panel.

⚠ WarningBefore performing any service on the unit, power down the system and disconnect it from the electrical supply. Completely isolate and depressurize the section being serviced before beginning any mechanical work.

Article	Applies To
BrewBlast™ 40PPH & 70CPH – Specifications & Components	40PPH, 70CPH
BrewBlast™ 40PPH & 70CPH – Checking for Leaks	40PPH, 70CPH
BrewBlast™ Alarms & Troubleshooting	All models
BrewBlast™ 40PPH & 70CPH – Annual Filter Replacement	40PPH, 70CPH
BrewBlast™ Product Overview	All models

Contact South-Tek Systems

Phone: (910) 415-1880
Email / Ticket: support@southteksystems911.zendesk.com