Troubleshooting, Electrical Shock Hazard

NOTE: The core should only be serviced when outdoor temperature is 60°F to 75°F (16°C to 24°C) and it is dry.

!CAUTION

UNIT COMPONENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

DO NOT use water to clean core or damage will result. In addition, before servicing or removing the core inspect the edges to see if they appear soft (or slightly expanded). This can be normal and due to moisture in the air. DO NOT handle or service core until it is dry or air passages can become damaged and/or closed.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing or servicing system, always turn off main power to system. There may be more than 1 disconnect switch.

!CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when handling parts.

TROUBLESHOOTING

NOTE: Reference Table 5 Troubleshooting Chart

This can be a quick guide in resolving unit problems. It is also recommended to review and understand Wall Control Board Operation and Care and Maintenance sections before continuing.

NOTE: If there is a short circuit or an open circuit at thermistor, CPU will go into a 5 minute defrost cycle every 20 minutes. This feature is not there on older board versions with 3 pin jumpers.

Override Test

To use override test function, a thermistor must be connected to the control board. Unit must not be in defrost mode during an override test.

High Speed

1. Disconnect ERV/HRV from 115VAC.

1.Unplug wall control wires at control module terminal block in- side ERV/HRV.

2.Plug ERV/HRV back to 115VAC.

3.Attach a wire across J3-8 and J3-9 (B and G) on control mod- ule terminal block.

4.Close door, this will initiate a high-speed exchange.

Low Speed

1.Unplug ERV/HRV from 115VAC.

2.Disconnect wall control wires at control module terminal block inside ERV/HRV.

3.Plug ERV/HRV back to 115VAC.

4.Connect a 3.0 K ohm resistor between B and G on control module terminal block.

5.Close door, this will initiate a low-speed exchange.

Blower Speed Selection

Three-speed blowers are factory connected to electronic control board on HIGH- and LOW-speed taps of blowers. Installer can easily change low-speed tap to medium-speed tap so electronic control will select between high and medium speed. Connections can be changed at transformer location. See Connection diagram, Fig. 17.

ERV / HRV

ERVCCSVB1100, HRVCCSHB1100, ERVCCSHB1100, HRVCCSVB1100 specifications

The Carrier ERVCCSVB1100, HRVCCSVB1100, HRVCCSHB1100, and ERVCCSHB1100 represent the latest advancements in residential and commercial ventilation systems. These systems are designed to enhance indoor air quality while ensuring energy efficiency, making them ideal solutions for modern buildings.

One of the main features of these units is their recovery ventilation technology. Both the Energy Recovery Ventilator (ERV) and Heat Recovery Ventilator (HRV) options are engineered to efficiently transfer heat and moisture between incoming and outgoing air streams. This process reduces energy consumption by pre-conditioning fresh air, thereby minimizing the workload on heating and cooling systems.

The ERVCCSVB1100 and ERVCCSHB1100 models are particularly well-suited for humid climates where moisture control is critical. They utilize a sophisticated enthalpy exchange process, which allows excess humidity to be transferred from the stale air to the incoming fresh air, thereby reducing the burden on air conditioning systems and maintaining optimal indoor humidity levels. This feature is essential for enhancing occupant comfort and safeguarding building materials from moisture-related damage.

On the other hand, the HRVCCSVB1100 and HRVCCSHB1100 units shine in drier climates where humidity control is less of a concern. These systems focus on heat recovery, effectively transferring thermal energy without exchanging moisture. This is particularly advantageous during winter months, as they provide fresh air while conserving precious heat, thus optimizing energy utilization and contributing to lower utility bills.

Another critical characteristic of all four models is their quiet operation. Designed with sound-dampening technologies, they ensure minimal noise disturbance, thereby maintaining a peaceful indoor environment. This is especially valuable in residential settings or commercial spaces that require a distraction-free atmosphere.

Additionally, the units come with intelligent controls that allow users to monitor and adjust settings according to their specific needs. Features such as programmable timers and remote access capabilities provide convenience and flexibility for users, enabling them to optimize their indoor air quality effortlessly.

In summary, Carrier's ERVCCSVB1100, HRVCCSVB1100, HRVCCSHB1100, and ERVCCSHB1100 models offer a comprehensive suite of features, advanced technologies, and characteristics tailored to meet the demands of modern indoor environments. By integrating energy recovery ventilation with user-friendly controls, they set a new standard for efficiency, comfort, and air quality in various building types.