Aleko NTSA Series - User Manual

NTSA3/9 171130
NTSA SERIES SAUNA HEATER
MODELS: NTSA-30, NTSA-45
NTSA-60, NTSA-90
With NTS-100 on-heater digital
control.
NTSC SERIES SAUNA HEATER
MODELS:
NTSC-30, NTSC-45
NTSC-60, NTSC-90
With NTS-300 wall-mounted
digital control.
Read all instructions carefully before installation. Please leave all
instructions and warranty with the owner.
IT IS UNLAWFUL TO INSTALL THIS UNIT WITHOUT FIRST
OBTAINING A PERMIT FROM THE LOCAL ELECTRICAL
INSPECTION AUTHORITY.
WARING
Prolonged exposure to elevated temperatures is capable of inducing
hyperthermia. Hyperthermia occurs when the internal temperature
of the body reaches several degrees above the normal body
temperature of 98.6
0
F. The symptoms of hyperthermia include an
increase in the normal temperature of the body, dizziness,
lethargy,drowsiness, and fainting. The effects of the hyperthermia
include failure to perceive heat, failure to recognize the need to exit
the room, unawareness of impending hazard,fetal damage in
pregnant women, physical inability to exit the room and
unconsciousness.
WARING
The use of alcohol, drugs, or medication is capable of greatly
increasing the risk of fatal hyperthermia.
WARNING
Do not take a sauna if
using alcohol, drugs or
medications.
Pregnant women or
persons with poor
health should consult
their physician before
using any sauna.
Caution fire hazard: Do
not use the sauna room
for drying clothes,
bathing suits,etc. Do not
hang towels above
heater or place any
object other than the
rocks supplied on the
heater. If any darkening
of the wall around the
heater is noticed
discontinue sauna use
immediately.
Inspect sauna regularly
for required
maintenance to
heater,control and
benches. Replace wood
surfaces which show
any signs of
deterioration.
The heater gets
extremely hot during
operation and should
not be touched or burns
may result.
Minors should be
adequately supervised
whenever near a hot or
warming sauna.
.
INSTALLATION AND OPERATING INSTRUCTIONS

Summary

Section 1: General Information

Section 2: Mounting of Sauna Heater

Section 3: Placing of Rocks

Section 4: Electrical Hook-Up

Section 5: Temperature Sensor Box

Section 6: Control Box

Section 7: Heater Screen (Guard Rail)

Section 8: Control Installation

Section 9: NTS-300 Control Operation

Display

Overview of the NTS-300 control panel display, including temperature and time readouts.

Automatic Heating Control Function

How the NTS-300 automatically adjusts heating based on room temperature and user-set values.

Button and Function

Explanation of the buttons and their operations on the NTS-300 control panel.

Section 10: NTS-100 Control Operation

Display

Overview of the NTS-100 control panel display, including temperature and time readouts.

Automatic Heating Control Function

How the NTS-100 automatically adjusts heating based on room temperature and user-set values.

Button and Function

Explanation of the buttons and their operations on the NTS-100 control panel.

Section 11: High Limit Control (Reset Button)

Section 12: How to Take a Sauna

Section 13: Warning Placards

Section 14: Room Construction

Section 15: Ventilation

Section 16: Maintenance

Care and Cleaning

Instructions for cleaning the control panel, sauna room, and heater.

Section 17: Troubleshooting

Overview

1. Function Description
2. Important Technical Specifications
3. Heater Dimensions
4. Power (kW) and Sauna Room (CuFt) Requirements (240VAC60Hz)
5. Light and Fan (120VAC60Hz)
6. Minimum Safety Distances (in.)
7. Control Panel Specifications
8. Usage Features
9. Maintenance Features

This document provides installation and operating instructions for the NTSA and NTSC series sauna heaters.

Function Description:

The NTSA and NTSC series sauna heaters are designed for small sauna rooms, providing heat for a sauna experience. These heaters are ETL approved for permanent installations and electrical connections, featuring splash-proof construction to protect conducting parts from water. The NTSA series heaters are equipped with an NTS-100 on-heater digital control panel, while the NTSC series heaters utilize an NTS-300 wall-mounted digital control panel. Both control panels (NTS-300 and NTS-100) are designed for family use.

The control panels allow users to adjust the sauna temperature and set a timer for when the heater starts and stops. The NTS-300 control panel features a temperature display (range 43-221°F, adjustable 158-194°F), a time display (maximum preset time 12 hours, maximum operating time 60 minutes), heating and control heating indicators, and external light and fan indicators. It includes buttons for START/STOP, temperature and time setting, pause, light control, and fan control. The NTS-100 control panel offers similar functionalities with a temperature display (range 43-221°F, adjustable 158-194°F), time display (maximum preset time 10 hours, maximum operating time 60 minutes), heating and temperature-preserving indicators, and external light indicator. It also has START/STOP, temperature and time setting, and light control buttons. Both controls feature an automatic heating control function that compares room temperature with the user-set value to decide which heating elements to activate.

Safety features include a manual reset thermostat (KT2) within the sauna heater that cuts off heating elements if abnormal high temperatures occur. The temperature sensor box also has a built-in temperature limiting thermostat (KT1) that automatically turns off the heater if the sauna room temperature rises to an abnormally high level. Both KT1 and KT2 require manual resetting after the temperature falls back to normal and power is turned off.

Important Technical Specifications:

Heater Dimensions:

• NTSA 30-90: 17¾" W × 15" D × 24¾" H
• NTSC 30-90: 17¾" W × 11¾" D × 24¾" H

Power (kW) and Sauna Room (CuFt) Requirements (240VAC60Hz):

Model	Max (kW)	Heating (kW)	Sauna Room (CuFt) Height < 76¾"	Power wire Copper	Fuse (A)
NTSA-30, NTSC-30	3.2	3.0	70 ~ 140	4#12AWG	20
NTSA-45, NTSC-45	4.7	4.5	105 ~ 210	4#10AWG	25
NTSA-60, NTSC-60	6.2	6.0	175 ~ 320	4#8AWG	40
NTSA-90, NTSC-90	9.2	9.0	265 ~ 460	4#6AWG	60

Light and Fan (120VAC60Hz):

• NTSA Series: Light <40W (Connect to Connection terminal J9 on PCB), No Fan.
• NTSC Series: Light <40W (Connect to Connection terminal J9 on PCB), Fan ≤40W (Connect to Connection terminal J10 on PCB).
  • Note: The Neutral wire (N) is not necessary if the customer does not install the bulb or the fan.

Minimum Safety Distances (in.):

SAUNA HEATER	A	B	C
NTSA-30,NTSC-30	3½	7	8
NTSA-45,NTSC-45	3½	7	8
NTSA-60,NTSC-60	4	7½	9
NTSA-90,NTSC-90	6	9½	10

• A: Distance from heater to combustible material on the side.
• B: Distance from heater to combustible material in front.
• C: Distance from heater to combustible material above.
• Minimum ceiling spacing: 78".
• Minimum clearance from heater to wooden surfaces (benches, side walls, heater fence etc.): 2 inches.
• Temperature sensor placement: Top of sensor 2" from ceiling and directly above heater.

Control Panel Specifications:

• NTS-300: Wall-mounted digital control panel, 16.5 feet control wire.
• NTS-100: On-heater digital control panel.
• Sensor wire must be routed completely separate from any wiring carrying over 50 volts.
• Control box (for NTS-300) environment temperature cannot exceed 140°F.

Usage Features:

• Installation: Heaters are wall-mounted. Installation requires drilling holes and securing the heater with lag screws into framing members or backing boards. Proper clearances to combustible materials must be observed.
• Rock Placement: Only original sauna rocks or rocks specified for the heater should be used. Rocks must be rinsed before placement. They should be placed loosely to allow air circulation and fully cover the heating elements. Over-tight packing can cause the high limit switch to trip.
• Electrical Hook-up: Electrical installation must be performed by a licensed electrician in accordance with national and local codes. Copper supply wire suitable for a minimum of 221°F is required. The heater must be grounded.
  • For on-heater control units (NTS-100), connect power supply and temperature sensor cable.
  • For wall-mount digital control units (NTS-300), connect power supply, 6*12AWG+GND rubber cable wire, and 2-p wire of manual reset thermostat KT2 between the control box and heater.
• Temperature Sensor Box: Mount 2" from the ceiling directly above the heater. The sensor box has a 10-foot connection wire.
• Control Box (NTS-300): Install close to the heater but outside the sauna room, in a well-ventilated, dry area with enough space for wire layout.
• Heater Screen (Guard Rail): A wooden heater guard is required to prevent accidental contact with the hot heater.
• Taking a Sauna:
  • Allow time to relax.
  • Remove clothing and jewelry; wear a towel.
  • After 10-15 minutes or when perspiration begins, leave the sauna and relax in a dressing area, followed by a cool shower.
  • Cooling time should equal time spent in the sauna.
  • Repeat the cycle 2 or 3 times, ending with a brisk shower in cool water.
  • Dress when completely dry.
  • Splashing water on heated rocks for steam: Use only one dipper full (1/2 cup) at a time.
  • Do not smoke, exercise, or drink alcoholic beverages in the sauna room.
  • Do not pour chlorinated pool or spa water on the heater.
• Control Operation (NTS-300 & NTS-100):
  • START/STOP: Press to enter preset mode, then again to enter heating mode. Press again to stop heating.
  • SET TEMP: Adjust temperature setting (158-194°F).
  • SET TIME: Adjust preset time (0:00-11:59 for NTS-300, 0:00-9:59 for NTS-100) and heating time (1-60 minutes).
  • PAUSE (NTS-300 only): Temporarily pause heating; indicators turn off. Press again to restore.
  • LIGHT CONTROL: ON/OFF switch for ordinary sauna light (≤40W120VAC).
  • FAN CONTROL (NTS-300 only): ON/OFF switch for ventilation fan.
  • Temperature Unit Setting: Hold SET TEMP and ▲ for 3 seconds to switch between °C and °F.
  • Illumination Model Setting: Hold SET TEMP and * for 3 seconds to switch between filament lamp ("bULb") and LED system ("LEd").
• Safety Placards: "CAUTION" placard must be on the interior wall above the heater; "WARNING" placard must be on the sauna door.

Maintenance Features:

• General Maintenance: Only a licensed electrician is allowed to perform maintenance. Power supply must be cut off before any maintenance. Test the heater after maintenance.
• Regular Inspection: Frequent inspection is required to prevent hazards from damaged wire or parts due to moisture. Check for proper ventilation and signs of overheating. Ensure the heater is properly grounded and all cables are wired correctly and not oxidized.
• Cleaning:
  • Control panel: Clean with a damp soft cloth.
  • Sauna room: Keep clean and odor-free. Use towels or mats on benches and floor.
  • Air out the sauna by keeping the door and vents open when not in use.
  • Wash down daily-use saunas at least once a week.
  • Duckboard: Remove, mop the floor, scrub and dry the duckboard before returning.
  • Sauna heater: Wipe down occasionally with a damp cloth to remove lint and dust.
  • Rocks: Remove once a year for cleaning; replace small or crumbled rocks.
  • Benches and supporting structure: Inspect annually for deterioration; replace any damaged boards immediately.
• Component Replacement (Service Center Only):
  • Heating Elements: Turn off power, allow to cool, remove heater from wall, disconnect wires, unlock screws, and replace.
  • Mainboard: Turn off power, allow to cool, remove base plate, disconnect wires, and replace.
  • Sub-board: Turn off power, allow to cool, remove base plate, disconnect wires, and replace.
  • Control Panel: Turn off power, remove cover, disconnect cable, and replace.
  • Temperature Sensor: Turn off power, allow to cool, disconnect sensor cable from terminal TB2 (on-heater control) or connector J3 (wall-mount control box), then replace.
• Troubleshooting (Intelligent Self-Diagnose Function):
  • Room temperature lower than 6°C (43°F): Displays "-L".
  • Room temperature exceeds 105°C (221°F): Displays "-H". Heater stops heating and restores automatically when temperature falls.
  • Communication error: Displays "EE". Indicates bad connection between panel and mainboard. Check control cable and connector.
  • Temperature sensor error: Displays "SE". Indicates broken or shorted sensor. Heater stops working. Check sensor cable and connector or replace sensor box.
• High Limit Control (Reset Button): If the manual reset thermostat (KT2) or temperature limiting thermostat (KT1) trips frequently, contact a qualified serviceman. Ensure proper ventilation.

Aleko NTSA Series Specifications

General

Brand	Aleko
Model	NTSA Series
Category	Heater
Language	English