HVAC SYSTEMS AND MANUAL
RHEEM GAS HEATERS – TWINNED DUAL
Two Rheem Gas Heaters were installed in 2013. They replaced a large 1930s gas furnace.
Heat to the house should be supplied PRIMARILY by the RHEEM Gas heaters located in the basement. This heater uses the orginal brick vents that reach into all of the rooms. The tenant should not block any of these vents. Some have levers that can adjust the heat and air that comes out of them.
The 13 Mitsubishi HVAC Units should ONLY be used in the HEAT mode with fan on AUTO. Suggested settings are HEAT from 68 at night to 72 degree during the day.
In colder weather, it will take a many minutes for these to start working and start blowing hot air.
The Thermostat is an Ecobee4 with ESN 511805089414, which allows remote control.
Current Schedule: 70 at Home and 65 when Sleeping. It is your responsibility to control the thermostat to your liking.
The manual is available at ecobee.com
https://www.ecobee.com/en-us/smart-thermostats/
MITSUBISJ HEAT PUMP AND AIR CONDITIONING UNITS
We have 13 Mitsubishi HVAC heat pumps at the home. These were installed as new in 2024 (previously Fujitsu installed in 2008).
Even though we have a Extreme Heat option installed in them, the Heat from these systems should be SECONDARY. Use the gas furnace for PRIMARY heating.
ALL UNITS MUST BE SET TO EITHER COOL OR HEAT – do not mix modes
Heat pumps do not work very well when it is cold. It can take almost 30 minutes to get up to temperature when it was cold.
To produce heat the heat pump systems must have their FAN set to AUTO. If you set a system to another setting you probably get just the FAN.
See below for detailed information from the maintenance documentation for the house
Mitsubishi HVAC
800-433-4822
support@mitsubishi.com
1) Each unit has its own thermostat mounted on the wall.
2) They can also be controlled by the APP called “Comfort by Mitsubishi Electric”. This was updated from the older Kumo cloud.
3) General heat for the house should be provided by the main Rheem Gas system. The heat pumps should be used only for modifying certain room temperatures.
4) The outside condensers should be kept unblocked and free of leaves and other debris. Snow removal around the exterior heat pumps is essential.
How to use the thermostat
I will use degrees in the heating season as an example below.
A common misconception is that when a room is 65 degrees, and you want it warmer fast, you should set the thermostat to 80 degrees.
The reality is that the room will not get warm any faster than setting the thermostat at 72 degrees (assuming that is what you would call comfortable.)
In reality, you will stress the system, and the room will get much hotter than you want.
What you should do:
If the room is cold, say, 68, set the thermostat to 72. Later on, if you decide that it’s a little chilly, then move the thermostat to 73.
If you find yourself constantly adjusting the thermostat up or down, let us know. We can adapt the program to your needs.
If this seems completely obvious, then great. This is written for all of the other people who like to adjust the thermostat way too high.
Contractors
Current Contractor is
Pricebeat
Amir Karni
201-206-8981 cell
908-298-1900 office
ackarni@mac.com
info@lovepricebeat.com
BACKUP CONTRACTOR 2020 to 2021
Munesh Pritipaul
www.blakacool.com
blakacool@gmail.com
94-51A 214PL
Jamaica, NY 11428
212-203-3202 – office
718-607-7866 – cell
PREVIOUS CONTRACTOR 2021 to 2024
Vortech Mechanical Corp
2140-05 Pond Road, Ronkonkoma, NY 11779
Phone: 631.648.9157 | Fax: 631.648.9158
Steven Schmidt <s.schmidt@vortechmc.com>, Mike McNamara <m.mcnamara@vortechmc.com>
Notes on system as of 11/23/2025
| Friendly Floor Names | Location | Comfort Names | Wifi Network |
| 0 Garden Level | Front | Garden front u | CMHnetX |
| 0 Garden Level | middle | Garden Dining | CMHnetX |
| 0 Garden Level | Back | Garden kitchen | CMHnetX |
| 1 Parlor Level | Front | 1-Front North | AH Advisors |
| 1 Parlor Level | Foyer | 1-Foyer Stairs | AH Advisors |
| 1 Parlor Level | Living Room | 1st Center Room | CMHnetX |
| 1 Parlor Level | Back | 1-Back South | AH Advisors |
| 2nd Floor | Front | 2flr front unit | AH Advisors |
| 2nd Floor | Back | 2flr back unit | AH Advisors |
| 3rd Floor | Front | 3flr front unit | AH Advisors |
| 3rd Floor | Back | 3flr back unit | OFF LINE |
| 4th Floor | Front | 4Flr front unit | AH Advisors |
| 4th Floor | Back | 4Flr back unit | AH Advisors |
MAINTENANCE ISSUES
1) Only CMHNetX should be used
2) All units should be on the same network
3) Unit 3rd floor back is Off Line
The comfort app connects to the 2.4Ghz band on your router. Many routers are either 2.4Ghz (single band) or both 2.4 and 5Ghz (dual band).
CMHnetX is the 2.4ghz zone
https://help.mitsubishicomfort.com/s/article/What-Wi-Fi-band-does-comfort-app-operate-on
- Frequency: The system is limited to the 2.4 GHz band and will not work on 5 GHz networks.
- Router type: Your router must support the 2.4 GHz band and the b/g/n protocols.
- Mesh networks: Many mesh networks that use 2.4GHz & 5GHz mesh cannot be used with the Mitsubishi Wireless Interface 2.
- Wi-Fi 6/6E: Routers configured for Wi-Fi 6 (802.11ax) or Wi-Fi 6E will not work because the system cannot connect to these newer protocols.
- Security: The network must use WPA2-Personal (AES) security.